Anastrepha
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Anastrepha ornata Aldrich
![]() Dorsal habitus, female. |
Recognition
Anastrepha ornata differs from all other species of Anastrepha in having the
middle section of the S-band very slender, but the distal section broad. It is unusual in
having the proximal arm of the V-band connected along the posterior wing margin to a basal
extension of the S-band along vein A1+Cu2; within the serpentina group this occurs
only in some A. pulchella. A. ornata further differs from the other species
of the serpentina group in having the C-band and S-band well separated. It is one
of the species with the thoracic pleuron largely brown and with the abdomen partially
brown. It differs from the other predominantly brown species in having broad dorsocentral
nonmicrotrichose areas on the scutum and the aculeus tip broadly triangular.
Description
Body largely dark orange to dark brown with yellow markings. Setae dark brown.
Head: Mostly yellow. Ocellar tubercle brown. Frons often with small brown marks bordering orbital plate laterally and mesally, rarely with orbital plate also brown; occasionally orange to red-brown medially or anteromedially. Occiput with paired, triangular or rounded, brown mark dorsally. Facial carina, in profile, concave. 3-4 frontal setae; 2 orbital setae, posterior seta well developed. Ocellar seta weak, small to minute. Antenna extended 0.70-0.85 distance to lower facial margin.
Thorax: Mostly orangebrown to brown with following areas yellow and distinctly contrasting: postpronotal lobe; single medial and paired sublateral vittae on scutum, the slender medial vitta extended nearly full length of scutum, broadened posteriorly, extended laterally about half distance from acrostichal seta to dorsocentral seta; sublateral vitta extended from transverse suture to or almost to posterior margin, including intra-alar seta; scutellum except extreme base (brown area usually well separated from basal seta, but sometimes narrowly separated); dorsal margin and anteroventral corner of anepisternum; dorsal half of greater ampulla; dorsal margin of katepisternum; katepimeron; and most of anatergite and katatergite. Mesonotal darker areas mostly red-brown to dark brown, with short to moderately long, moderately broad, usually truncate, orange submedial area bordering or partially touching medial vitta and crossing transverse suture. Darker areas of anepisternum, anepimeron, meron, and katatergite dark brown. Katepisternum usually orange on anteroventral margin, brown posteriorly. Subscutellum and mediotergite red-brown to dark brown, sometimes narrowly orange medially. Mesonotum 2.75-3.45 mm long. Scutum without microtrichia anterior to transverse suture except on and between orange submedial areas and narrowly along suture and lateral margin, microtrichose posterior to transverse suture except for broad sublateral stripe between dorsocentral and intra-alar lines; setulae brown anteriorly and laterally, yellow on and between submedial orange areas and to varying degrees posterior to them. Katepisternal seta moderately developed, weaker than but usually longer than postocellar seta, brown.
Wing: Length 6.91-8.23 mm. Vein M strongly curved apically; section between BM-Cu and R-M 1.81-2.51 times as long as section between R-M and DM-Cu; section between R-M and DM-Cu 0.76-0.91 times as long as DM-Cu. Crossvein DM-Cu distinctly oblique, with anterior end more distal than posterior end. Pattern mostly dark brown. C-band and S-band completely separated except sometimes for pale yellow area of S-band in cell dm narrowly bordering brown posterior part of C-band. C-band yellowish to subhyaline in cell bc and posterior half of cell c; with large yellowish area in base of cell sc and cells r1 and r2+3 posterior to pterostigma, extending distally to end of band almost at level of apex of vein R1. S-band with large, sometimes faint, yellow area covering most of basal half of cell dm; rest of band dark brown, including areas distal to and anterior to R-M; brown part of middle section of band narrow; distal section broad, at apex of vein R2+3 0.53-1.00 times width of cell r2+3, if relatively narrow at that point usually broader more distally; extended to or less commonly almost to apex of vein M. Cell bm hyaline. Cell br with large hyaline area posterior to pterostigma broadly connected to marginal hyaline area in cell r1. V-band with distal arm absent; proximal arm slender, extended anteriorly at least to vein M, but at most to middle of cell r4+5 and usually fainter in the latter cell; separated from S-band anteriorly, but extended basally along posterior wing margin to vein A1+Cu2 and connected to extension from base of S-band.
![]() Wing. |
Abdomen: Orange with yellow and brown markings. Syntergite 1+2 mostly brown, with narrow medial yellow band and posterior margin broadly yellow, narrowing laterally. Tergites 3-4 with brown bands, occasionally narrowly medially interrupted on tergite 4; posterior margin yellow, narrowing laterally. Tergite 5 and female tergite 6 orange.
Male terminalia: Dorsal posterior margin of epandrium evenly convex. Lateral surstylus moderately long; in lateral view slightly curved; in posterior view, without strong basolateral lobe, main part paddle-shaped, broad and truncate apically. Proctiger with lateral fold separating sclerotized areas. Phallus 3.75-4.37 mm long; 1.29-1.40 times as long as mesonotum. Glans 0.55 mm long; acrophallus relatively stout.
![]() Epandrium and surstyli. |
Female terminalia: Oviscape 3.00-3.95 mm long, 1.03-1.19 times as long as mesonotum. Eversible membrane with 55-65 large, hook-like dorsobasal scales in triangular pattern. Aculeus 3.10-3.74 mm long; tip 0.31-0.36 mm long, 0.16-0.18 mm wide, nonserrate, broadly triangular and blunt apically. Spermathecae globose to elongate ovoid.
![]() Aculeus tip, ventral. |
| Top of Page | Content by Allen L. Norrbom. Last Updated: January 20, 2003. |