Eupseniina, PARK AND, 1951

Chandler, Donald S., 2023, The Eupsenius LeConte of North America and the Lesser Antilles with Notes on the Brachyglutini Subtribes Eupseniina Park and Baradina Park (Coleoptera: Staphylinidae: Pselaphinae), The Coleopterists Bulletin 77 (3), pp. 397-412 : 400

Subtribe Eupseniina

Specimens Examined. Eupsenius , 20+ species, cleared specimens of seven Eupsenius species, and pointed specimens of an undescribed genus close to Eupsenius .

Diagnosis. Body moderately broad, with depressed abdomen, dorsum glabrous except for densely setose antennomeres IX–XI, XI usually over one-third antennal length. Head with broad, prominent antennal rostrum, frontoclypeus abruptly declivous at apex of rostrum; gula smoothly convex; with sharply defined ocular-maxillary lateral carinae; mandibles lacking lateral setae; maxillary palpi of usual size for Brachyglutini, with four palpomeres. Mesoventral area: lateral mesoventral foveae large, broadly meeting at middle, median mesoventral fovea short, wide, contacting lateral mesoventral foveae. Elytra with lateroapical cleft lacking, reduced to fold. Separation of metacoxae varying from contiguous to widely separated, apparently correlated with body size; metacoxa flat except for low projection that articulates with me- tatrochanter, projection not prominent. Anterior tarsal claw on each leg greatly reduced to lacking. Tergites 1–3 with associated paratergites, tergite 1 and ventrite 2 longest, each nearly as long as rest of abdomen.Aedeagus varying considerably in general form within the genus.