On the Lomechusini fauna of the East Palaearctic and Oriental regions, with a focus on the genera Orphnebius and Amaurodera (Coleoptera: Staphylinidae: Aleocharinae)
Authors: Assing Volker 
Published: December 2020

Types and additional material of 13 genera of Lomechusini from the Palaearctic and Oriental regions are revised. In all, 28 species are (re-)described and/or illustrated, 17 of them new: Orphnebius (Deroleptus) triacuminatus spec. nov. (Thailand) of the O. draco group; O. (D.) gracilis spec. nov. (South India) and O. (D.) protuberatus spec. nov. (South India) of the O. niger group; O. (D.) pertortus spec. nov. (India: West Bengal), O. (D.) migrus spec. nov. (India: Meghalaya), and O. (D.) reticulipennis spec. nov. (Indonesia: Java) of the O. siwalikensis group; Pheidologitonetes bursata spec. nov. (South India); Amaurodera bicarinata spec. nov. (India: Meghalaya); A. gilvicornis spec. nov. (Thailand); A. latisulcata spec. nov. (Indonesia: Java); A. brevipes spec. nov. (Indonesia: Sumatra); A. migritheca spec. nov. (Indonesia: Sumatra); A. longisetosa spec. nov. (Malaysia: Sabah); A. calicitheca spec. nov. (Malaysia: Sabah); Drusilla lativentris spec. nov. (China: Yunnan); Rabdotodrusilla vara spec. nov. (India: Meghalaya); Witteia tensa spec. nov. (China: Yunnan). The following new combination and synonymy are established: Pheidologitonetes adesi (Pace, 1998), comb. nov. (ex Zyrastilbus); Drusilla obliqua (Bernhauer, 1916) = D. palata Assing, 2015, syn. nov. Zyrastilbus angkorensis Pace, 2004 is not congeneric with the type species of Zyrastilbus Cameron, 1939; its correct generic assignment (Drusilla?) is currently unknown. An updated catalogue of the 174 described representatives of Orphnebius Motschulsky, 1858 in the East Palaearctic and Oriental regions is provided; the species are grouped according to a recently proposed intrageneric system. Amaurodera Fauvel, 1905 currently includes 53 described species distributed in the southern East Palaearctic and the Oriental regions. Additional records of 46 named and three unnamed species are reported, among them several new country records. The distributions of two Himalayan Orphnebius species are mapped.

Nomenclatural Acts

Orphnebius (Deroleptus) triacuminatus spec. nov. – urn:lsid:zoobank.org:act:A8C586C1-2037-4DE5-997C-7B5DFD7F8581

Orphnebius (Deroleptus) gracilis spec. nov. – urn:lsid:zoobank.org:act:F52577E3-1AD2-4C33-80E9-1C129D969EFB

Orphnebius (Deroleptus) protuberatus spec. nov. – urn:lsid:zoobank.org:act:06A78E32-C968-43A9-97E1-7682FE870CB6

Orphnebius (Deroleptus) pertortus spec. nov. – urn:lsid:zoobank.org:act:D6784D78-D101-4BF6-B59F-78D0097BF255

Orphnebius (Deroleptus) migrus spec. nov. – urn:lsid:zoobank.org:act:550FAFD7-3EA5-40E2-9E95-9203CB6C7505

Orphnebius (Deroleptus) reticulipennis spec. nov. – urn:lsid:zoobank.org:act:A4F9C29A-34F2-4B67-AD44-3CB3593B3D89

Pheidologitonetes bursata spec. nov. – urn:lsid:zoobank.org:act:77C109C7-DED4-4297-95B4-519B7E085212

Amaurodera bicarinata spec. nov. – urn:lsid:zoobank.org:act:6504024F-CF61-4071-A1BA-E11A73AE16B0

Amaurodera gilvicornis spec. nov. – urn:lsid:zoobank.org:act:8AD61DB5-D227-4158-93B3-0F902BFF8C8F

Amaurodera latisulcata spec. nov. – urn:lsid:zoobank.org:act:FA0BB6D1-AA68-4368-8640-CC5B576FB393

Amaurodera brevipes spec. nov. – urn:lsid:zoobank.org:act:9EEEC874-0C9A-4809-A8F5-B44EA72217BF

Amaurodera migritheca spec. nov. – urn:lsid:zoobank.org:act:AAE44C1B-FD1A-49CF-B08B-C6F067F54F09

Amaurodera longisetosa spec. nov. – urn:lsid:zoobank.org:act:887533D9-985B-41FE-B3C8-F1FF8938DC8B

Amaurodera calicitheca spec. nov. – urn:lsid:zoobank.org:act:774965EE-4326-45C1-B89E-303A3B4AC04F

Drusilla lativentris spec. nov. – urn:lsid:zoobank.org:act:7CAC3239-9821-4DF6-BB7A-C8A564E9AF14

Rabdotodrusilla vara spec. nov. – urn:lsid:zoobank.org:act:EF92FF0F-0E13-4BCB-9D20-270262CA9D76

Witteia tensa spec. nov. – urn:lsid:zoobank.org:act:32B142EA-09BF-423E-8951-C710CE8AF383