Omissophagus, Esser & R & Usa & M, 2018

Esser, Jens, R, Nearctic, Usa & M, New, 2018, New genera and new species of Cryptophagidae (Coleoptera) from USA and Mexico, Linzer biologische Beiträge 50 (2), pp. 1079-1083 : 1080

Omissophagus nov.gen. ( fig. 1, 2 )

T y p e s p e c i e s: Omissophagus tsoodzilianus nov.sp.

E t y m o l o g y: From the Latin word omissus – overlooked and the Greek word phagos – to feed.

D e s c r i p t i o n: Body small, 2.1 to 2.2 mm, reddish-brown, membranous wings absent. Surface with fine punctation, extremities stout ( fig. 1, 2 ). Eyes small, slightly rounded or nearly flat, with just a few ommatidia. Pronotum with sides moderately or hardly rounded, with one small tooth-like anterior callosity and two small teeth on each side. Glandular porus only at the anterior callosity visible. Male tarsal formula 5-5-4, females with 5-5-5.

C o m m e n t: Similar to several Cryptophagus HERBST, 1792 but easily distinguishable by the second teeth on sides of pronotum. Salebius CASEY, 1900 ( fig. 4 ) differs from Omissophagus gen. nov. by having two strong tooth (or strong undulation) with glandular porus on each tip instead of fine tooth without pori. Remotophagus gen. nov. ( fig. 3 ) differs by a more transverse pronotum with sides flattened, antennae and legs slender, hemispherical eyes and its more convex and stout general shape.

Figures

Figs. 1-2: (1) Omissophagus tsoodzilianus nov.gen. & nov.sp. holotype, male; (2) Omissophagus sandianus nov.gen. & nov.sp. holotype, male.

Fig. 3-4: (3) Remotophagus oaxacanensis nov.gen. & nov.sp., paratype, female; (4) Salebius octodentatus (MÄKLIN, 1852), female.