Drusilla Leach, 1819 See Maruyama (2000) for a list of synonyms. Diagnosis. Drusilla can be distinguished from all other Nearctic genera belonging to the tribe Lomechusini by the following combination of characters: 1) head with distinct neck (Figs. 1–3); 2) head with occipital suture extremely short, terminating proximal to gena (Fig. 3); 3) in lateral view, vertex sloping rapidly posteriorly to form a vertical, sometimes almost deflexed profile (Fig. 3); 4) maxillary components, especially galea, elongate, forming a protruding complex visible past labrum in dorsal view (Figs. 1, 5); 5) labial palpomeres subequal in length (Fig. 4); ultimate labial palpomere slightly curved inwards (Fig. 4); 6) glossa relatively long, bifid with prominent separation (Fig. 4); 7) dorsal abdominal surface sub-glabrous, with a few scattered setae (including macrosetae, Figs. 1–2).

Published as part of Eldredge, Taro, 2012, Review of the Nearctic species of Drusilla Leach (Coleoptera: Staphylinidae: Aleocharinae), pp. 45-54 in Zootaxa 3300 on page 46, DOI: 10.5281/zenodo.210858