(Coleoptera: Chrysomelidae: Alticinae)
Omeisphaera Chen & Zia
Omeisphaera anticata |
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Omeisphaera anticata |
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Distribution: Known only from type locality, China:
Szechwan, Omeishan.
Statistics: 1 species.
Host Plants: Unknown.
Comments: The English translation of the generic
description consists of a comparison of this genus with
Sphaeroderma and Argopus, and description of
the type species. Therefore we have used both sources to complete
this diagnosis.
Diagnosis: "Body
hemispherical, ovate. General color red-brown, ... head and
anterior part of prothorax shining black; anterior legs with
apical 2/3 of tibiae and one or two basal segments of tarsi
blackish; antennae black, opaque, except three basal segments
shining piceous, first partly yellow beneath and last more or
less brownish towards apex.
Head impunctate, frontal tubercles slightly oblique,
interantennal space narrow, raised. Antenna extending back to
middle of elytra, second and third segment equal in length.
Pronotum very finely and moderately closely punctate,
anterior angles slightly produced and lobiform. Elytral
punctures fine, but much coarser than those on pronotum,
arranged in rather irregular rows" (Chen & Zia 1974).
"Closely allied to Sphaeroderma Stephen and
Argopus Fischer, chiefly characterized by: 1. clypeus
entire, not bilobed; 2. epipleura of elytra not horizontal, but
oblique or semi vertical; 3. anterior process of metasternum
strongly raised, apex blunt and immargined, covering mesosternum;
4. antennae slender, terminal segments thickened, second and
third short, equal in length, fourth nearly as long as two
preceding combined" (Chen & Zia 1974).
