Editor: Dug Miller
Systematic Entomol. Lab.
Building 005, Room 137
10300 Baltimore Avenue
Plant Sciences Institute
Beltsville Agric. Res. Ctr.
Beltsville, MD 20705 USA
dmiller@sel.barc.usda.gov
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Volume
XXVIII December 30, 2004
From Chris Hodgson a Questionaire concerning
the site for ISSIS 2007: At the ISSIS
meeting in Padua in 2001, it was suggested that the 2007 meeting should
take place in Egypt. However, that was
before the situation in the Middle
East had worsened. The International Committee of ISSIS feels
that it is important that as many delegates as possible should attend these
meetings. Each meeting takes a lot of
organisation and a final decision needs to be made at least 2 years prior to
the actual meeting. So a decision regarding the venue for the next meeting
needs to be made this Spring. Prof. Dr.
Amin of Ain Shams University, Cairo, Egypt is keen to hold the meeting there but, in case the present
problems in Iraq and Israel/Palestine are still continuing in three months
time, Dr. Manuala Branco, Departmento Florestal in Lisbon, Portugal, has kindly agreed to hold the meeting there. In order to help us make the most democratic
decision, we would very much appreciate your response to the following
questions. Please choose only one answer
for each question.
1. If you had a choice, which of the following venues could
you attend (choose one):
A. Egypt B.
Portugal C. Both D. Neither
2. If it is necessary for you to get permission
to attend ISSIS meetings from your employer, would you anticipate having
problems in attending a meeting in (choose one):
A. Egypt B.
Portugal C. Both D. Neither
3. If it is necessary to apply for a grant to attend the next
meeting, either for travel, subsistence or both, would you anticipate having
problems if the meeting was held in:
A. Egypt B.
Portugal C. Both D. Neither.
4. If you had a choice between the two venues,
which would you choose:
A. Egypt B.
Portugal C. No
preference.
If
you have any other comments to make which might affect the choice of site,
please add these to your reply. The
International Committee would be most grateful if you would either return a
copy of this questionnaire by post (to dug Miller at the address given above),
or email your choice for each of the above questions to
dmiller@sel.barc.usda.gov. In either
case, please respond AS SOON AS POSSIBLE and not later than January 30, 2005. Thank you.
Loss of a great coccidologist: Jan Koteja was an innovative scientist and added numerous interesting and
exciting bodies of information to the study of scale insects. According to ScaleNet he wrote 114 research
papers on scale insects (and there likely are several others in press) and
described at least 7 new families, 20 new genera, and 42 new species. He frequently had ideas that didn’t “fit in
the box” of tradition; but in many instances his hypotheses have gained wide
acceptance in coccidology. His findings
in systematics, morphology, phylogeny, and fossils will remain important reading
for scientist well into the future. He
will be greatly missed.
A message from Pawel Koteja: I am sorry to inform you that my father, Jan
Koteja, has died on Aug 19. The funeral will be on Rakowice Cemetery in Krakow, on Aug 24 at 13.00. As you may know, he has been retired for two
years, but has worked at home to his last day. I know that he has been in the
process of revising and writing manuscripts - some of which, I believe, were
contributions to books or special journal issues. He has also worked on several
specimens of amber inclusions, some of which came from his colleagues and
various museums. Soon after the funeral I will start digging through his
computer and drawers to find the connections, and will do my best to return all
the materials to the owners. As you guess, it will not be an easy job -
especially because my scientific interests were quite distinct from those of my
father. I obviously know - since my childhood, indeed - several names of his
colleagues (e.g., Ferenz Kozar, Michael Kosztarab, Yair Ben-Dov, Evelyna Danzig,
and others), but I have only vague information about his current contacts and
commitments. I will certainly be able to find the connections, but it would
ease my job if the information about my father's death was distributed through
"The Scale" and a mailing list of scale insect specialists you
probably have. I would especially appreciate it if those who had sent specimens
or collaborated on current manuscripts e-mailed me and helped with identifying
the specimens and provided instructions concerning returning of the materials.
Some of the borrowed as well as my father's own specimens are partly or perhaps
even completely prepared for microscopic examination. I hope somebody may be
interested in finishing the job.
Ferenc
Kozár, Hungary:
Finally in the spring of 2004 my book “Ortheziidae of the World” was
published. Now I can return to my
research on Rhizoecini mealybugs. To this point in time I have published on one
new genus, including a new species. Also four new Ripersiella species have been described from the Australian-Pacific
region. A World revision of Ripersiella
including eight new species has been submitted. In total, the number of species
in this genus has increased to 73. Two new genera of the Rhizoecini are in
print and one genus is reestablished. These genera include 9 new species. A new species of Geococcus has also been submitted for publication. I hope to finish a short revision of the
genus Rhizoecus, with a description of at least four new species, increasing
the total number of species to 83. Currently I am working on the identification
of part of Imre Foldi’s Pseudococcidae collection from South America. I also am planning to do more work in on the
Eriococcidae.
Gillian on the move: From 7
December 2004, Gillian Watson will be working as Associate Insect
Biosystematist (covering Sternorrhyncha and Thysanoptera) at the following
address: Plant Pest
Diagnostic Center, California
Department of Food & Agriculture, 3294 Meadowview Road, Sacramento,
California 95832-1448,
USA. Tel.: (+) 916 262-1100, Fax: (+) 916
262-1190, Email: gwatson@cdfa.ca.gov
Yair
Ben-Dov, Israel: The Catalogue
of the Diaspididae (Ben-dov, Y & German, V. 2003. A systematic
catalogue of the Diaspididae (armoured scale insects) of the world, subfamilies
Aspidiotinae, Comstockiellinae and Odonaspidinae. Intercept Publishers, Ltd. Andover, England, 1111 pp.) was
published on December 2003, and is now available for purchase from the
Publisher [see short review below]. Subsequently, the database for the genera
and species of the above-listed subfamilies have been joined with the
Diaspidinae and Leucaspidinae (compiled by Dug Miller). Consequently, the whole
Diaspididae family is now available on-line on ScaleNet. I
have finalized (cut-off date December 2003) the preparation of the manuscript
of The Catalogue of the Margarodidae.
The Catalogue will be published in 2005.
During 2002 and 2003 I have proceeded inputting data for ScaleNet, the joint project with Dug
Miller. I have been adding data on the families Aclerdidae, Asterolecaniidae,
Beesoniidae, Carayonemidae, Coccidae, Dactylopiidae, Diaspididae (subfamilies
Aspidiotinae, Comstockiellinae and Odonaspidinae), Kerriidae,
Lecanodiaspididae, Margarodidae and Pseudococcidae. The website Directory of Scale Insect (Hemiptera:
Coccoidea) Systematists, was developed and is now available for users at the
URL: This website was developed to provide information on
systematists of scale insects, beginning with Carl von Linnaeus (1707-1778) to
the present. “Scale Insect” systematists
is regarded, in the context of this directory, a person who has been either an author or co-author of a new
taxon in the Coccoidea. The Directory
presents the following details: For deceased systematists - full names, year of
birth and year of death, reference to biography and a portrait (when available);
for living systematists the user may retrieve information including full names,
affiliation address, e-mail address, URL of website page and a portrait. It is
my wish to update and upgrade the Directory, therefore, feedback from
colleagues and users will be highly appreciated. If you discover that a
particular scale insect systematist is not included in the Directory, or you
have new information and corrections to be included, please send the
information to .
Rosa Henderson, New Zealand: This year has been notable for travel, first away to
Turkey to participate in ISSIS X at Adana, and secondly a reorganised life with
a long daily commute across town to work, since the April move into our new
Landcare Research building. We have mixed feelings about this building,
although on the whole it is a great improvement for the insect collection, e.g.
some pluses … pinned insects are now housed in unit trays in flat drawer
cabinets instead of upright store boxes… the Coccoidea are all in one area …
and there is a dedicated small lab for slide preparation. The minuses of a
noisy environment (unlined concrete walls, floors and ceilings) may be lessened
if we can get sound-absorbing additions.
Surely, everyone enjoyed ISSIS X as much as I did! As well, a developing
collaboration with Ben Normark from that meeting promises much for the revision
of the NZ Diaspididae. The Normark Lab team at the University
of Massachusetts are sequencing the NZ species that I send over, and I hope
this information will throw some light on the Leucaspis armoured scales
in particular. At this end I am busy collecting (with the help of two
enthusiastic friends) and making slides of everything we find, while the list
of possible new species grows apace. The NZ Coccidae are not completely
forgotten. Chris Hodgson’s and my monograph describing adult males, pupae and
prepupae came out in June as “Fauna of New Zealand 51,” and Chris has kindly
written up descriptions of the females of two new Umbonichiton species,
for a paper that we hope to have published soon. Then there are interesting
eriococcids lurking on the descriptions agenda. Life is never dull when
studying scale insects!
Jon Martin, London, UK:
Major changes are afoot at the Natural History Museum in London.
In order to provide space for the building of phase 2 of their Darwin
Center project, the existing
Entomology building is scheduled for demolition in 2005. General background to
these plans is given on the web link http://www.nhm.ac.uk
/entomology/move.html. The details of which parts of the Entomology collections
will be temporarily transferred to which locations are still being finalised.
However, the liklihood is that the Coccoidea collections will be located at a
facility near the Wimbledon tennis grounds, about 4
miles (6 kilometers) from the museum itself. This will have implications for
intending visitors for the next three years. As part of the preparations for
moving this huge collection, the slide collection has now been substantially
updated from recent catalogues and the Zoological Record. The dry collection
had been in three sections for many decades - a "main" collection
(material in shunt boxes, alphabetically arranged), the former Newstead
Collection (housed in display drawers, arranged by family / subfamily) and what
was euphemistically termed a "supplementary" collection (unarranged
but named duplicates of material already on slides). All this dry material has
now been melded into the main dry collection, in shunt boxes and other small
boxes, in one alphabetical series, not arranged by family. While this was being
done, the names were brought up to date following the system of the slide
collection. Holdings of dry material have now also been databased at a very
basic level - i.e. dry material present in or absent from NHM collection. An
inevitable consequence of such a major reorganisation of a collection has been
the disposal of much unsorted material in poor condition. However, the same
exercise has revealed valuable material, including type material, that has now
been fully incorporated into the collection. The cabinets that housed the
Newstead and supplementary collections have been released for re-use outside
the museum, thus minimising the volume of furniture to be moved in 2005. Jon Martin, the curator with responsibility
for the coccoid collections, suggests that 2005 is not likely to be a good year
to plan to visit the London NHM's collections. Also, enquiries are likely to be
dealt with more quickly if material is already slide-mounted.
Uri
Gerson, Israel: Thank you for your message about the
new “The Scale.” As you may know, I am now retired (albeit still reasonably
active) and have not "touched" scale insects for many years. So the
only contribution I can offer is a short chapter from our book (with Bob Smiley
and Ron Ochoa), "Mites (Acari) for Pest Control". This chapter (38-4) is attached, for you to
decide whether the included information could be of interest to the readers of
“The Scale.”
Acarine
biocontrol agents as enemies of scale insects
Scale insects (Homoptera:
Coccoidea) are major plant pests, causing their damage by feeding, injecting
toxins, transmitting plant viruses and excreting honeydew on which disfiguring
sooty-mould fungi grow. The most
important families are the Diaspididae (armoured scale insects), Coccidae (soft
scales), Pseudococcidae (mealybugs) and
Margarodidae. Most scale insects (with the notable exception of the mealybugs)
are sedentary during most of their lives. After eclosion the first-instar
nymphs (‘crawlers’) leave their birth place and, unless blown away by winds,
settle at near-by sites, thus often
forming colonies. In most cases the settled female insect spends the rest of
her life at that location. The post-crawler instars either lose their legs when
moulting or, if these appendages are retained, seldom move. The short- lived,
winged males lack mouthparts, serving merely to inseminate the females. The
colonies, while intensifying scale insect damage at their sites, also increase
the probability of being detected by natural enemies (including ABAs). Another
factor that facilitates the biological control of individual scale insects is
the long life cycle, which prolongs their exposure time. Scale insects usually
require several months to raise a generation, a period less than half the time
by ABAs, which thus produce more than a single generation on each host scale.
ABAs of armoured scale insects
The body of the Diaspididae
is covered by a closely-adhering shield that usually protects them from ABAs.
However, as the crawlers hatch they raise a posterior flap of the shield in
order to emerge. This portal serves Hemisarcoptes and Saniosulus
to gain access to the females' bodies and eggs. The mites then feed on the body
of the female scale, its young and eggs. The Diaspididae is the family that has
attracted the most acarine parasites and predators, being the only coccoid
family that has a specific genus of associated natural enemies (e.g. Hemisarcoptes)
that can control its populations (Gerson et al., 1990). Most of the
predatory Eupalopsellidae whose prey are known feed on crawlers (although they
may be found on the adults), as do some Camerobiidae and Cheyletidae that occur
on fruit trees (e.g. Moraes et al., 1989). The small bodies of the
crawlers do not suffice for the development of the generalist parasitoid
Pyemotidae, which often attack adult diaspidids. Pyemotids are generally rare
on scale insects, although De Lillo & Porcelli (1993) recorded parasitoism
rates of about 30% on a Cotoneaster-infesting armoured scale in Italy. Stigmaeidae,
especially species of Agistemus, may feed on armoured scale crawlers
(e.g. Ehara, 1962; Farag et al., 1990), but probably do not affect their
populations. Another potential stigmaeid predator of diaspidids is Eryngiopus,
because three of its species were found under the shields of pestiferous scale insects (Vacante &
Gerson, 1989). Several Phytoseiidae feed, reproduce, and complete their
development when offered only diaspidid eggs and crawlers (McMurtry, 1963;
Ragusa & Swirski, 1977). At least one, Typhlodromus baccettii
Lombardini, seems to have a special relationship with Carulaspis, a
cypress- inhabiting diaspidid; almost all scales sampled in the spring at Florence, Italy, had the mites under their shields. The predator devoured
the eggs of Carulaspis, but may also feed on available phytophagous
mites (Baccetti, 1960). The recent literature on diaspidids as a food source
for phytoseiids was reviewed by Schausberger (1998), who demonstrated that
three generalists developed and reproduced when given an exclusive diet of
crawlers of the San Jose scale, Quadraspidiotus perniciosus
(Comstock). Generalist predators in the
families Anystidae, Bdellidae, Cunaxidae and Erythraeidae consume diaspidid
crawlers (Gerson et al., 1990), but such feeding appears to be
opportunistic and there is no evidence that it affects the pests’
populations. The citrus red mite, Panonychus
citri, has a negative, non-destructive association with the California red scale, Aonidiella aurantii (Maskell), a major
pest of citrus. Orange leaves were infested with adult mites and about 100
crawlers were added almost daily. Half the crawlers settled on leaves that had
been infested by the mites for 1-4 days, their settlement rate decreasing
thereafter. By day 11 no scales were able to settle, suggesting that the mites
had rendered these leaves unsuitable for the crawlers (Ebeling, 1948). The
mechanism of this inhibition is not known.
ABAs of Soft scales, mealybugs
and other scale insects
Soft scales do not appear to have any specific acarine
predators or parasites, but may be parasitised by opportunistic ABAs, such as Pyemotes (Vaivanijkul & Haramoto, 1969). The eggs
and crawlers of several soft scale species served as subsistence food for Amblyseius
swirskii in the laboratory, but only few became adults and oviposition was
negligible (Ragusa & Swirski, 1977). Mycophagous Tydeidae serve as
sanitizing agents in citrus grove, because by feeding on the sooty-mould that
develops on coccid honeydew they reduce the attendant damage (Mendel &
Gerson, 1982). Tydeids may serve a similar function in regard to the honeydew
of mealybugs, whose eggs and crawlers provided survival food for phytoseiids.
Some species fed on this diet and a few eggs were produced, but none of the
progeny developed beyond the protonymphal stage
(Ragusa di Chiara & Tsolakis, 1995).
The honeydew of mealybugs provided sufficient nutrients for the
production of a few eggs by Amblyseius limonicus and enhanced the
females’ survival (McMurtry & Scriven, 1965). Larvae and nymphs of Leptus sp. and Bochartia
sp. (Erythraeidae) attacked the nymphs and adults of Drosicha mangiferae
Green (Margarodidae), a pest of mango in India.
The mites parasitised the scales and sucked out their body fluids, causing the
hosts to blacken and shrivel. The mites killed about 15-20% of the pests, were
active from January to May and later migratedg to the soil (Tandon & Lal, 1976). The trombidiid Allothrombium
mitchelli Davis fed on and
seemed to reduce the numbers of the beech scale (Cryptococcus fagisuga
Lindinger, Eriococcidae) in the eastern USA
(Wiggins et al., 2001). This
variety of reports suggests that additional natural enemies of scale insects
remain to be discovered, especially in the tropics. However, the available
evidence indicates that, with the exception of Hemisarcoptes, few ABAs
capable of controlling scale insect pests will be found.
Francesco Porcelli,
Italy: The study of the interactions between
Septobasidium and the Diaspididae is
finished. I refrain from providing extensive information because some parts of
the research are from the thesis of Carmela Stigliano. She will conclude her
work in January and a publication will follow.
I have almost finished the first study of the action of Aphanocladium album (fungi) against L. viburni. See the attached picture of
an infected scale. This is a joint study with Prof. Ciccarese, a mycologist
here from the faculty of agriculture. A
study about paternal heterochromatization has just started; we have a lot of
material of Unaspis euonymi at hand
and this image shows the general structure of the reproductive system.
Tuoloidin blue is the intra vitam stain.


Imre Foldi, Paris, France: Since I am now retired and no longer
President of the Entomological Society of France, I now have much time to work
on scale insects. Indeed, I continue full time and am focusing my research on
the Margarodidae and related families. A series of papers are in preparation on
the archaeococcoids, starting with the Matsucoccidae of the Mediterranean basin
(publication probably in December, 2004), followed by others on the
Monophlebidae, the Margarodidae and so on. Hopefully, I will complete a generic
revision of the archaeococcoids. Another
very exciting research project is a collaborative work with Chris Hodgson on
the phylogeny of the Margarodidae sensu Morrison and related taxa based on
adult male morphology; the first results were presented by Hodgson at ISSIS-X, Adana,
Turkey (2004). We have
nearly completed describing and illustrating representative males of most of
the higher taxa and hope to obtain a well supported phylogenetic tree in the
final analysis. This year (2004), I had
the pleasure of a visit from Ferenc Kozár, who has just finished his book on
the Ortheziidae of the World, in my laboratory.
I very much enjoyed working with him on diverse aspects of scale
insects. In addition, I must mention the visit of Douglas Williams (November,
2004) which, as always, was a very pleasant experience.
Lerzan
Erkilic, Turkey: ISSIS-X was held in Adana,
Turkey on 19-23 April
2004. We have 52 attendances from 14 different countries. During the meeting 10
different sessions were held and 44 presentations were given. Beside oral
presentations there were 20 posters on different aspects of scale insect
research. We hope that the attendees of the meeting had a nice time during
their stay in Adana. We also missed
a significant number of colleagues who
couldn’t attend for diverse reasons.
Evelyna Danzig, Russia: This
year I have finished the second and last part of the revision of the genus Phenacoccus of the former USSR.
It includes 49 species. In addition I wrote and published in “Entomologicheskoe
Obozrenie” a work on Phenacoccus spp.
inhabiting different species of Picea
with a discussion of polymorphism of the wide spread species Ph. piceae Loew. I reported on this work
at the X Scale Insect Symposium in Adana.
I want to say that the traveling in Turkey
was very impressive and very well arranged. Now I am close to finishing an
investigation on the genus Euripersia
which I consider to be a junior synonym of Fonscolombia.
It is a very interesting root mealybug characterized by ovoviviparous
reproduction. The size of the genus is not large, but it is difficult to find
characters to diagnose the genus when compared with Phenacoccus.
Ilya Gavrilov, Russia: I
am currently finishing my dissertation (Ph.D. thesis): “Systematics and
cytogenetics of scale insects (Homoptera, Coccinea) of European Russia”. It will include keys for all species from the
region and neighbouring territories, descriptions of new and little known
species, and a cytogenetic review of more than 40 species from 29 genera and 8
families. A recent article was published in "Entomologicheskoe
Obozrenie": “The scale insects of Volga area” with
descriptions of a new mealybug genus and species – Perystrix ulmaria Gavrilov, 2004. In co-operation with Dr.
Valentina Kuznetsova, I am preparing a review of coccid chromosome systems for
a special Russian book dedicated to evolutionary and genetic problems. I am
also preparing a review of chromosome numbers in scale insects of the
world (it will be in English). The
review will be useful since most of this kind of information (with the
exception of the works of Brown and Nur) is currently scattered in obscure
publications.
Chris Hodgson, Wales, UK: Projects completed or almost
completed -- With Dug Miller and Samual
Goncalves: a new species of Pseudotectococcus from Brazil ( Lundiana
5: 51-72); with Rosa Henderson: the males of the indigenous soft scales of New
Zealand (Fauna of New Zealand No. 51); with Rosa Henderson: 2 new
species of soft scale from New Zealand (submitted to Zootaxa); with Prof.
Takagi: a new gall-inducing coccoid on dipterocarps (almost completed); with
Carl-Axel Gertsson: four new species of mealybug and a new species of soft
scale from Greenland (about to be submitted); also the description of the males
of nine of the 11 coccoid species known from Greenland (about to be
submitted). Work in progress: With Imre Foldi: the phylogeny of the
margarodids and related families based on male morphology; also the rest of the
scale insect families based on male morphology; with Penny Gullan: revision of
the Australian Coccidae; with Dug Miller: descriptions of the type species of
the eriococcid genera in South America; with Sophia Gounari: the scale insect
sources of honeydew used by honeybees for honey production in Greece; with Rosa
Henderson: the immature stages of the soft scales of New Zealand.
Penny Gullan, California,
USA: Penny's lab at UCD now has three
graduate students, Janie Booth, Cory Unruh and Nathaniel (Nate) Hardy, and one
postdoctoral researcher, Takumasa (Demian) Kondo, all studying the phylogenetic
systematics of scale insects. Cory is
studying iceryine margarodids and especially Steatococcus, Janie is
working on Matsucoccus, Nate is investigating Australian eriococcids,
and Demian is continuing his coccid studies but with some "diversification"
into other families. Much of our funding comes from a PEET (Partnerships for
Enhancing Expertise in Taxonomy) National Science Fund grant to Penny, with Dug
Miller (USDA) and Ben Normark (University
of Massachusetts) as collaborators.
Check out our lab web page for details of all of our projects and
activites: http://entomology.ucdavis.edu/gullanandcranstonlab/ In June 2003, as
part of our PEET project, Penny hosted an informal five-day training workshop
on scale insect systematics and phylogeny, with emphasis on the morphology of
adult females. This workshop, or "Scale Camp", involved almost all
PEET project trainees and participants and was held in the Department of
Entomology at UCD. Doug Williams (who visited from England for the event), Dug
Miller, Ray Gill and Demian Kondo helped Penny with instruction, and Ph.D.
student, Patrycja Gazinska (Agriculture University in Warsaw), even traveled
from Poland to attend. For more details go to: http://entomology.ucdavis.edu/Scalewebpages/peet/workshop.html Ben Normark hosted
a second Scale Camp, held at the University of Massachusetts, Amherst, in
October 2004, with the theme of molecular phylogenetic analysis. All members of
Penny's lab (except Nate who was in India) went to Amherst to participate, and everyone learned a great deal about
scale insect DNA data, including how wacky it is! Plus we all had a wonderful time interacting
with Ben, postdoc Geoff Morse, and graduate students Matt Gruwell and Rodger
Gwiazdowski. Lyn Cook, from the Australian
National University in Canberra, Australia, also participated in training at the second Scale Camp
and visited UCD afterwards for two weeks to collaborate with Penny. Lyn's
expertise in obtaining and analyzing coccoid DNA, especially aligning
nucleotide sequences using secondary structure, was very helpful to the
students. Members of our lab have been
traveling a lot since publication of the last edition of "The Scale"
in April 2003. In addition to flying east to the Scale Camp held at University
of Massachusetts, there have been two major trips that have involved two or
more members of our lab. The first was the
Tenth International Symposium on Scale Insect Studies (ISSIS-X) in Adana, Turkey, from April 19-24, 2004. Penny, Cory and Demian traveled to Turkey to attend ISSIS-X, where they each presented a paper. They
thoroughly enjoyed ISSIS, the Turkish hospitality and the tour of Cappadocia,
and wish to especially thank Lerzan Erkilic and Bora Kaydan. The second big
trip was to Australia for the International Congress of Entomology (ICE), which
took place in Brisbane in August 2004.
Cory and Nate presented posters at ICE on their scale insect research
and Penny gave two talks, but only one on scale insects (on coccoid-eucalypt
radiations, co-authored with Lyn Cook, of ANU). In January 2004, Penny and Lyn
also co-authored an invited talk on their eriococcid research, presented to the
IV Southern Connection meeting (an international congress of scientists who
study southern hemisphere biology and earth history; go to:
http://www.uct.ac.za/conferences/sc2004), held in Cape Town, South Africa. Demian Kondo completed a Ph.D. on soft
scale (Coccidae: Myzolecaniinae) systematics at Auburn University, Alabama, in early 2003 and he commenced a post-doctoral position
with the PEET project in April 2003. He still primarily works on the
phylogenetic systematics of soft scale insects. His major project is a
taxonomic revision of a group of coccids that feed only on Macaranga
plants in intimate association with Crematogaster ants, but he and Penny
have a number of smaller taxonomic projects to describe other scale insect
species, including a new Peruvian species of Cryptostigma, a new
Colombian lac insect and two new Brazilian mealybug species. Demian spends most
of his time drawing and describing scale insects, but prepares some
slide-mounts, does a bit of databasing, and has (reluctantly) learnt some
molecular techniques. In September 2003, Demian and Peter Cranston went to Jamaica for a week, specifically to collect at the type locality
of Ferrisia virgata in Kingston. They ventured into Kingston at the quietest time of the week, early Sunday morning, to
avoid attracting unwanted attention as they searched for mealybugs on the
street trees. Their success in finding the target mealybugs just goes to show
that some type localities remain mealybug-friendly for at least a hundred years! In late 2003, Demian went on a collecting
trip (organized by Dr. Elizabeth Arias from UC Berkeley) to a number of
forested areas in Chile,
where he braved the rain for several weeks to collect scale insects, mainly
eriococcids. Cory Unruh, who began her graduate studies in October 2002, is
researching the taxonomy and phylogeny of iceryine Margarodidae for her Ph.D.
dissertation. She has been preparing taxonomic redescriptions of two Heteromargarodes
species (ground pearls), producing a database for Steatococcus species, scoring iceryine
margarodids for cladistic analysis of morphological data, and also acquiring
and analyzing molecular data on iceryines. Her molecular phylogenetic data from
the large subunit ribosomal DNA gene (28S) suggest that the genera Icerya
and Steatococcus are not monophyletic. Cory will be testing these first
hypotheses of relationships with additional genes and morphological data, and
is keen to obtain more iceryine species for her analyses. Please collect and preserve (in 90-100%
ethanol) any margarodids that you see and post them to Cory. Thanks to everyone
who has sent specimens already. As well as doing lots of lab work, Cory has
made trips to Turkey for ISSIS-X (April 2004), to the south-west USA for
fieldwork (spring 2004), to Australia for ICE (August 2004), and to Montana and
Salt Lake City, USA, for Entomological Society of America meetings. Janie Booth commenced her graduate
studies in late September 2003 and is studying the systematics and evolution of
the pine-infesting genus Matsucoccus (Margarodidae). During her first
academic year, Janie completed a substantial amount of coursework and did
several short collecting trips in California and the east coast of the U.S. She also presented a talk on Matsucoccus at the
Western Forest Insect Work Conference, held in southern California in late April 2004. Her most valuable data for
phylogenetic reconstruction are nucleotide sequences because Matsucoccus
is very conservative morphologically. Janie has successfully sequenced the
small subunit ribosomal DNA gene (18S) from a number of Matsucoccus
samples from around the world (thanks to all of you who have sent specimens),
and she has commenced work on several other potentially informative genes. Her
preliminary analyses suggest that she will be able to reconstruct relationships
among Matsucoccus species successfully using DNA data alone, but she
needs many more species yet. Janie is using morphological data from adult
females and nymphs to augment and help interpret the molecular data. Check out
her Matsucoccus WEB at:
http://entomology.ucdavis. edu/gullanandcranstonlab/MatsucoccusWEB/MAIN.htm
Nate Hardy trained in
entomology at Cornell University and joined the Gullan/Cranston lab in July 2003, initially
as a volunteer and then as a postgraduate researcher. He worked on a project
(begun by the late Dr. Jack Beardsley) on the Australian eriococcid genus Lachnodius,
including preparing taxonomic drawings, making a Lucid key to species and
reconstructing the phylogeny of Lachnodius and its relatives based on
morphology. The project expanded so much that the systematics and evolution of Lachnodius,
Opisthoscelis and related Australian eriococcids now forms the topic of
his Ph.D. dissertation, which he formerly commenced in October 2004. Nate and Penny will be doing fieldwork in Victoria, Australia, during February 2005, to visit most of Jack Beardsley's
former collecting sites. Nate already has visited Australia to attend ICE, where he presented a poster on
relationships of Lachnodius and its relatives. In November 2004, Nate
traveled to northeast India where he collected some scale insects and helped Gavin
Svenson (from the Whiting lab at Brigham Young University, Utah) collect mantids.
In Spring 2004, Nate spent a couple of months scoring mealybugs for
morphological cladistic analysis to complement previous phylogenetic research
on Pseudococcidae that used molecular data (see Downie & Gullan, 2004). Our
mealybug phylogeny project is continuing as more specimens become available for
both DNA and morphological work. We are especially interested in obtaining
first-instar nymphs for as many mealybug species as possible and, in particular
need specimens of legless mealybugs (Sphaerococcus and similar taxa),
Rhizoecine and Phenacoccinae for DNA work.
Two undergraduate students, Meredith
Chalfant and Sarah Thrasher,
worked with Penny during 2003 as part-time lab assistants funded by the PEET
grant. Meredith worked on taxonomic illustrations for the project on Lachnodius.
Sarah gathered taxonomic measurements and prepared an illustration of the adult
female of a new species of Tessarobelus (Margarodidae) collected by
Penny in New Caledonia.
Benjamin Normark,
Massachusetts, USA, bnormark@ent.umass.edu. The main project in my
laboratory is molecular systematics of Diaspididae. Currently we are writing up three
manuscripts: (1) molecular systematics
of Diaspididae, using 95 species and 3 genes (first author Geoff Morse); (2)
molecular systematics of the Aspidiotus nerii complex (first author
Lisa Provencher), and (3) molecular systematics of beech scale, Cryptococcus fagisuga (first author
Rodger Gwiazdowski). Matthew Gruwell is
doing his Ph.D. dissertation on the primary endosymbionts of diaspidids. I am especially interested in the unusual
genetic systems of scale insects and related issues such as: sex ratios, sex
determination, genomic imprinting, ploidy levels of bacteriomes/mycetomes, and
cytogenetics. I have just received an
NSF-CAREER grant that supports work on the
molecular systematics of diaspidids and their
endosymbionts for the next 5 years. This
grant enables me to recruit an additional graduate student at a generous
stipend level, so please alert me to any talented undergraduates interested in
the evolution of scale insects. I am
also interested in establishing collaborative relationships with colleagues who
can provide diverse samples of diaspidids for the phylogeny project. One long-term goal is developing a
"DNA-barcoding" capability for molecular identification of armored
scales at different life stages. If your
job involves identifying diaspidids, and you are interested in helping develop
this capability, please contact me.
Dug Miller, Maryland, USA: This
year has been a bit traumatic personally, but through the dedication and
assistance of several colleagues in the Systematic Entomology Laboratory
(particularly Alessandra Rung, Gary Miller, Debra Creel, Nit Malikul, and
Michael Schauff) we have been able to make progress on several ongoing research
projects. In collaboration with Yair
Ben-Dov and Gary Gibson we have completed catalogs on several small families
including the Cerococcidae, Halimococcidae, Kermesidae, Micrococcidae,
Ortheziidae, Phenacoleachiidae, Phoenicococcidae, and Stictococcidae. These catalogs will be combined in a book in
the series published by Intercept and is authored by Miller, Gimpel, and
Rung. A great deal of effort was devoted
to adding data from Ferenc Kozár’s book on the Ortheziidae. The final volume on the second half of the
Diaspididae is currently in manuscript form, but it is so large that even
proofing it takes weeks or months. The
book on the economic armored scales of the US
finally appears that “it will see the light of day,” since it is due to be
published by Cornell University Press in the summer of 2005. It contains a color plate, line drawing, and
detailed description for each of more than 100 species, and has field keys and
keys to slide-mounted adult females. It
is set up in the same large format of books like Johnson and Lyon (1976). Our
main thrust for the year has been to complete 2 keys in the Lucid system. The family key is in the beta-testing phase
and will be on line in the near future; it includes all extant families and
provides numerous images of the characters and the structures included in the
fairly extensive glossary. Line
drawings, automontage images, and habitus images are included. Authors include Miller, Rung, Venable, and
Gill. The second key is on the 50 most
commonly intercepted mealybug species at US
ports-of-entry. Its completion is
expected in 2005. Other projects include
a revision of the armored scale genus Furcaspis
with Douglas Williams, a paper on the eriococcid genera of South
America with Chris Hodgson, and new research on the Dysmicoccus bispinosus group of
mealybugs. We are doing our best to keep
ScaleNet up to date, but the lack of a person dedicated to this task makes it
difficult. Karen Veilleux is doing a
wonderful job of keeping the reference files in ScaleNet up to date. However, if you see items that need changes
or know of publications that need to be added, please let us know. A major project in the collection area is to
incorporate the Kosztarab collection which was kindly donated to the US
National Museum of Natural History in the fall of 2003. The collection includes more than 20,000
slides and numerous envelopes of dry material.
It is an important addition to the collection and we are working
diligently on the compilation of a detailed inventory.
Douglas Williams, London, UK: Please
don’t hold Douglas responsible for this note; it was
written by the lesser dug, i.e. Miller.
The major accomplishment for the year was the publication of his new
book on the mealybugs of southern Asia; a short review
is given below. I can’t write enough
about how critically important this work is to our identification services in
the USA. We currently are (perhaps “were” after the
Tsunami) importing large quantities of tropical fruit from this part of the
world, but it was nearly impossible to determine many of the common mealybug
species that are intercepted at ports-of-entry.
Douglas’s book solves this problem. During the year, Douglas also published at
least 3 other papers, 1 on a Rhizoecus associated with Acropyga ants, another on 2 new mealybugs from the Falkland
Islands, and a synopsis of the mealybug genus Neochavesia. Who knows what
other papers emerged this year. He also
took his annual trek to “The States” and worked with Penny Gullan in California
on research on the iceryines of Australia. Later he visited with me in Maryland
and worked on a joint project on the genus Furcaspis. In November he made a quick trip to France
to work with Daniele Ferrero and Imre Foldi.
[And this man is retired and celebrated his 70th birthday
several years ago].
Louise Russell to
reach the century mark May 6, 2005: I
just had lunch with Louise Russell and Matilda and Michael Kosztarab and was
amazed at how well Louise is doing at the age of 99. The remarkable thing is that she ate an
entire entree of 2 crab cakes, mashed potatoes and gravy, coleslaw, and a
salad. Louise lives in her home of more
than 50 years by herself, and although she is nearly blind, she takes care of
herself with only limited assistance from visitors and neighbors. Manya Stoetzel keeps in close contact with
Louise and provides assistance and advice whenever possible. If you are interested in sending Louise a
congratulatory note for becoming a centurion, her address is: 9 Sunnyside Road,
Silver Spring, Maryland 20910, USA or you can send me a card or note around May
6 and I will present it to her at the celebration that we will be holding here
at Beltsville on that day. All are welcome to attend the festivities. Contact me for details. In case there are some who don’t remember
Louise, she published a monograph on Asterolecanium in 1941 that still is very useful for making
identifications. Most of her career was
spent working on aphids and whiteflies.
She was employed by the US Department of Agriculture for 47 years and
only retired because the mandatory retirement
age was 70.
Professor Tremblay
honored: Antonio Porcelli drew my
attention to some truly fascinating recent research on mealybug endosymbionts
including the discovery of bacterial symbionts inside bacterial symbionts that
reside inside the bodies of mealybugs.
Antonio suggested that a short note should be included in “The Scale”
pointing out that one of the involved bacterial genera was named in honor of Professor
Tremblay (Tremblaya) in recognition
of the important work that he did on scale insect endsymbionts. It also is worth mentioning that a different
genus is named in honor of the German coccidologist P. Buchner (Buchnera).
Herdsman ants and
their mealybug partners: A new book: Dill, Williams, and Maschwitz 2002.
Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft Frankfurt am Main,
557, 373 pp. This wonderful book
documents the remarkable symbiosis between Dolichoderus
ants and mealybugs in the tribe Allomyrmococcini. The book has 6 chapters including an
introduction, an overview of the distribution of the herdsman, taxonomy of
herdsman species in Dolichoderus,
taxonomy of mealybugs in the Allomyrmococcini, biology, and herdsman without
mealybug associates. The publication is
printed on quality paper and the illustrations, SEM images, and color images
are of very well done. The color
photographs of ants with attached mealybugs on their bodies are quite
remarkable. The chapter written by Doug
Williams “IV The mealybug tribe Allomyrmococcini and its association with
herdsman ants of the genus Dolichoderus in
southern Asia” gives a detailed treatment of 11 genera
and 37 species in the tribe. Characters
that diagnose the tribe are unusually heavily sclerotized ostioles and large
expanded claw digitules. The line
drawings are particularly impressive since most specimens contain large numbers
of setae and some of the setae are remarkably long and difficult to draw. The revision includes a list of all species,
a key to the genera of the tribe, and detailed descriptions of each of the
included species. In all cases the adult
female is illustrated, but drawings of first instars and an adult male also are
included. This is a very important work on the fascinating interactions of the
obligate symbiosis between ants and mealybugs.
See http://www.schweizerbart.ed
Mealybugs of
southern Asia: Williams
2004. Southdene Sdn. Bhd. Kuala Lumpur, Malaysia
and The Natural History
Museum, London,
UK, 896 pp. This remarkable book is the most recent in a
series of six book-length publications written by Douglas Williams since 1985
(others are Australian mealybugs, The scale insects of the tropical South
Pacific Region in 3 volumes, and mealybugs of Central and South America). Each of these works is essential for anyone
identifying mealybugs or scale insects from the treated area of the world. The copies of these volumes that reside in
the library at Beltsville, Maryland
are frayed and tattered from heavy use, and the southern Asia
volume will be no exception. The work
includes 353 species in 61 genera that are recorded from the 17 countries
treated as southern Asia. In recent years there has been considerable
trade with southern Asia, and many of the mealybug
species that were intercepted in quarantine from this area were unknown to
science or were misidentified. This
caused serious problems since incorrect determinations could allow introduction
of new invasive species in any country importing commodities from the
area. This book solves this problem and
is a must for scale-insect identifiers worldwide. See http://www.edi.co.uk/barlow
for more information.
A systematic
catalogue of the Diaspididae (Aspidiotinae, Comstockiellinae,
Odonaspidinae): Ben-Dov and German.
Intercept Ltd., Andover, UK,
1111 pp. Part of the series of
catalogues that is being published as a result of the ScaleNet initiative. The volume includes information on 864
species placed in 118 genera.. See http://www.intercept.co.uk
for more information.
RECENT LITERATURE
Compiled by Karen Veilleux
Karen continues to do a wonderful
job on the ScaleNet literature. I don’t
know how we could do it without her. It
is a huge, challenging and tedious job and she is great at it.
The total number of reference
records on ScaleNet now is 20,666 (that's 3,052 new records since the last
Scale). Maybe some of you have been searching ScaleNet to retrieve a list of
your own publications when needed. If you do, we would appreciate it if you
would draw our attention to any inadvertent errors or omissions that you may
notice. Thanks to those of you who have already taken the time to help us
improve the database in this way. Please send new publications to me directly
either to 710 Cedarview Dr., Blacksburg, VA 24060 USA or, electronically, to veilleux@vt.edu. I give priority to entering
records into the database from actual papers received from the authors
directly; other papers are entered as I learn of them.
Results
Abd-Rabou, S.
2003. The species of Coccophagus (Hymenoptera: Aphelinidae), with
description of one new species from Egypt. Acta Phytopathologica et Entomologica Hungarica
38(3/4): 351-355. [AbdRab2003]
Notes: The species of the aphelinid genus Coccophagus are
primary parasitoids of soft scale insects belonging to the family Coccidae.
These soft scale insects infect several economically important fruits or
ornamental trees, and several species of Coccophagus have been
used in the biological control of different scale insects. This paper reviews
the Egyptian species of Coccophagus, namely C. bivittaus,
C. ishii, C. lycimnia, C. qenai and C. scutellaris. C.
qenai is described as a new species from Egypt. Each species is briefly diagnosed and the known
information on host and distribution is given. A key is provided to these
species.
Abd-Rabou, S.
2004. The role of augmentative releases of indigenous parasitoid Metaphycus
lounsburyi (Hymenoptera: Encyrtidae) in enhancing the biological
control of Saissetia oleae (Homoptera: Coccidae) on olive in Egypt. Archives of Phytopathology and Plant Protection
37(3): 233-237. [AbdRab2004]
Notes: The Mediterranean black scale, Saissetia oleae is
the most important pest of olive in Egypt. Indigenous parasitoid Metaphycus lounsburyi
from different localities in Egypt, were manipulated, reared and mass-produced for
classical biological control in Egypt, more than 193,130 parasitoids were released. Several
releases were made between May 1999 and April 2001. Increases of the parasitism
from 17.4 to 42.0 and from 6.4 to 19.2 during the first year (1999-2000) and
the second year (2000-01), respectively, in the Northern Coast. This parasitoid became established in some of the
release sites in El-Arish and Matruh Governorates.
Abd-Rabou, S.
2004a. Augmentative releases of indigenous parasitoids of the Mediterranean
black scale Saissetia oleae (Oliver) (Hemiptera: Coccidae) on
olive in Egypt. Shashpa 11(1): 51-56. [AbdRab2004a]
Notes: The Mediterranean black scale, Saissetia oleae is
an important pest of olive in Egypt. Approximately 113,250 indigenous parasitoids of S.
oleae from different localities in Egypt, were mass produced and released at three locations,
from April 1999 to April 2000. Among all the indigenous parasitoids released,
only Metaphycus bartletti established itself on S. oleae with
parasitism rates of 83, 56, and 33% in the Northern Coast, Marsa Matruh and El-Arish, respectively.
Abd-Rabou, S.
2004b. Revision of the genus Aphytis (Hymenoptera: Aphelinidae)
with descriptions of two new species from Egypt. (In Chinese; Summary In English). Entomologia Sinica
11(2): 149-164. [AbdRab2004b]
Notes: The Egyptian species of the aphelinid genus Aphytis
Howard are reviewed. Aphytis azai Abd-Rabou and Aphytis
matruhi Abd-Rabou are described as new species from Egypt. Each species is briefly diagnosed and known
information on hosts and distributed is given. A. azai sp. nov.
is similar to A. melinus but different in the measurement of
antennal segments. A. matruhi sp. nov. differs from A.
lepidosaphes by the relative length of propodeum, metanotum and
scutellum. A key to the Egyptian species of Aphytis is provided.
Hosts include Aonidiella aurantii and Lepidosaphes beckii.
Abd-Rabou, S. & Hayat, M. 2003. A synopsis and key to the Egyptian species of Aphytis
Howard (Hymenoptera: Aphelinidae) parasitoids of diaspidid scale insects
(Homoptera: Diaspididae). Acta Phytopathologica et Entomologica Hungarica
38(3/4): 357-363. [AbdRabHa2003]
Notes: The species of Aphytis have great potential in the
biological control of diaspidid pests, and have been used for this purpose,
mostly with successful results, throughout the world. This paper provides a key
for the identification of the known species from Egypt, and gives a brief synopsis of the hosts and plants
from which these parasitoids were collected. Some of the collected Aphytis
species appear to be new for the Egyptian fauna, i.e. A. chilensis, A.
hispanicus, A. paramaculicornis, A. vandenboschi, A. philippinensis, A.
africanus, A. lingnanensis, A. phoenicis, A. aonidiae and A.
libanicus.
Abdel-Moniem, A. 2003. Ecological studies on the red-striped sugarcane soft scale, Pulvinaria
tenuivalvata (Newstead) (Hemiptera: Coccidae) in Upper Egypt. Archives of Phytopathology and Plant Protection 36(3/4): 161-172.
[AbdelM2003]
Notes: The red-striped soft scale P. tenuivalvata is a
pest attacking sugarcane (Saccharum officinarum) recently
recorded in Upper Egypt governorates. Sugarcane plantations in Upper Egypt were thoroughly inspected for 2 years from January 2001 until December
2002 to record infestation with P. tenuivalvata and its
population density. Crops, plants and weeds growing near sugarcane fields were
examined to determine the host range of this pest. Soft scale insect pests have
become increasingly dangerous on sugarcane in Egypt. These insects occurred from 3 to 8 months on the infested hosts. The red-striped
soft scale was active from May to December. Sugarcane, cogongrass (Imperata
cylindrica) and Deccan grass (Echinochloa crus-galli) were the
hosts, which harboured all insect stages. The infestation was restricted on the
lower surface of the leaves and lower numbers were found on the upper surface.
Damage to sugarcane included withering of the leaves and reduced yield, with
reduction in the sucrose content of the juice. The growth rate of pest
population infesting the sugarcane plants in 2001 increased gradually from June
to September and decreased from October to December. The same trend was found
for the growth rate of population in 2002. At high growth rates, it is
advisable to use chemical control. The effect of weather factors on the
population density of the P. tenuivalvata (the correlation
between the total number of pests and temperature or relative humidity) was
positive both years.
Ackacha, M.A., Polec-Pawlak, K. & Jarosz, M. 2003. Identification of anthraquinone coloring
matters in natural red dyestuffs by high performance liquid chromatography with
ultraviolet and electrospray mass spectrometric detection. Journal of
Separation Science 26(11): 1028-1034. [AckachPoJa2003]
Notes: Reversed phase liquid chromatography with diode array detection
(DAD) and electrospray mass spectrometric (ESI MSD) methods were developed for
the identification of anthraquinone color components of cochineal, lac dye, and
madder - red natural dyestuffs. Electrospray mass spectrometry was found to be
more suitable than diode array detection for such analysis because of its
highe