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

Abstract

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