(Coleoptera: Chrysomelidae: Alticinae)
Derocrepis Weise
Derocrepis jailensis |
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Derocrepis jailensis |
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Distribution: Europe, Caucasus, Asia Minor, western
Siberia, Africa, North America.
Statistics: about 6 species in Palearctic, more than 20
species worldwide.
Host Plants: Fabaceae:
Lathyrus, Vicia, Caragana, Genista, Astragalus, Coronilla,
Melilotus (Medvedev, Roginskaja, 1988).
Diagnosis: Body small to medium sized, elongate,
convex from lateral view. Color brown, sometimes with
metallic lustre. Pronotum red or reddish brown, elytron dark,
with or without metallic lustre, rarely covered with dense short
hair (D.pubipennis Reitter).
Head pro-hypognathous, more or less flat from lateral
view. Frontal ridge narrow, short, forming high T-shaped ridge
with anterior margin of head capsule. Antennal calli large,
raised, well delineated from vertex and frontal ridge by distinct
furrows. Interantennal space almost same width as diameter of
antennal socket, narrower than transverse diameter of eye. Eye
small. Orbital line present. Antenna 11-segmented, filiform, with
short apical segments.
Pronotum subquadrate, almost as wide as elytra, with
transverse and longitudinal furrows basally; posterolateral angle
acute. Procoxal cavity open behind. Intercoxal prosternal process
and mesosternum typical.
Elytra oval or elongate, with or without distinct
humeral callus. Elytral punctures arranged in striae, interspaces
narrow and convex. Epipleuron more or less narrow,
subhorizontal.
Pro- and mesofemora slightly swollen.
Metatibia cylindrical, short, expanded and flattened apically.
Metatarsus inserted apically; metatibial spine small, inserted in
middle of tibial apex. First metatarsal segment not longer than
following three combined.
