Revision of Acrulia Thomson, 1858 and Dialycera Ganglbauer, 1895, with taxonomic notes on related genera and description of a new genus from the Caucasus (Coleoptera: Staphylinidae: Omaliinae: Omaliini) Author Shavrin, Alexey V. Author Zanetti, Adriano text Zootaxa 2020 2020-06-16 4800 1 1 63 journal article 21686 10.11646/zootaxa.4800.1.1 b8acb4ae-fb06-462a-8dc5-066deb7845d5 1175-5326 3896791 E72B8368-BA12-4FEE-8D28-DC864FFFC0F8 Key to species of the genus Acrulia 1 Body wide (Fig. 1). Middle portion of head strongly elevated, with longitudinal ridges, reaching apical margins of ocelli. Postocular carina small, acute. Mesoventrite fully carinate (Fig. 21). Forebody yellow-brown to reddish-brown. Aedeagus as in Fig. 33–34. Body length: 1.70–2.60 mm . Europe, Central Asia, Siberia.............................. A. inflata (Gyllenhal) - Body narrower, elongate (Figs. 2–4). Middle portion of head slightly elevated, with longitudinal ridges, reaching level of middle of eyes. Postocular carina lacking. Mesoventrite partially carinate. Coloration of body different................. 2 2 Body darker: head and abdomen brown, pronotum and elytra brownish-yellow; posterior two-thirds of elytra with distinct, large, brown spot (Fig. 4). Median lobe of aedeagus narrow, parameres extending beyond apex of median lobe (Fig. 37). Body larger: 2.20–2.70 mm . Greece ................................................ A. assingi Zanetti & Shavrin , sp.n. - Body paler, yellow-brown; posterior third of elytra with indistinct, small, brown patch (Figs. 2–3). Median lobe of aedeagus moderately wider, parameres not reaching apex of median lobe (Fig. 35). Body smaller: 1.59–2.03 mm . Turkey ................................................................................................ A. akbesiana (Pic)