Holotrochus swezeyi, Bernhauer, 1942

Bernhauer, Max, 1942, Coleoptera, Staphylinidae Of Guam, Insects of Guam I, Bernice P. Bishop Museum, pp. 41-44 : 42

TODO 4.Holotrochus swezeyi , new species

Deep Deepblack,moderately dull,antennae,palpi and legs dark rust red. Head much narrower rower thanprothorax,between the theantenna!scapes with a feeble roundish impression, TODO finely andfairly densely punctured, atbase moderately dull Eyes fairly large, convex. Antennae shorter than thanhead headand andprothorax together,strongly thickened towards the apex, TODO thepenultimate segments almost double TODO aswide as aslong. Prothora:x almost as wide as the elytra,strongly transverse,rounded TODO onthe thesides with hind angles sharply right angled; before before these with aflatimpression,with two very fine longitudinal lines along middle, finely TODO butdistinctly TODO andfairly densely punctured,little shining. Elytra hardly as long as prothorax,together much broader than long with sharply protruding shoulders, finely and rather thickly punctured,hardly shining.Length, 2mm

Dededo , May 11, ex rotten log, Swezey.

This species stands next to Holotrochus splendens Bernhauer from Tonkin. Easily distinguished, however, by smaller narrower form, denser puncturation, especially of the prothorax and elytra, as well as smoky luster of upper surface.