A review of the Neotropical genus Diochus Erichson, 1840 (Coleoptera: Staphylinidae: Staphylininae)

The Neotropical species of the genus Diochus are reviewed. Two species are synonymised: D. flavicans Sharp, 1876 = D. vicinus Sharp, 1876 and D. vilis Sharp, 1885 = D. schaumii Kraatz, 1860. Six species groups are differentiated containing the following species: D. longicornis-group with the species D. adisi spec. nov., D. ashei spec. nov., D. guianensis spec. nov., D. longicornis Sharp, 1876, D. tarsalis Sharp, 1876, and D. unicolor spec. nov.; D. inornatusgroup with the species D. antennalis Cameron, 1922, D. amazonensis spec. nov., D. hanagarthi spec. nov., D. hermani spec. nov., D. hibbsi spec. nov., D. inornatus Sharp, 1885, D. newtoni spec. nov., D. novus spec. nov., D. plaumanni spec. nov., D. schuelkei spec. nov., D. tricolor spec. nov., and D. vicinus Sharp, 1876; D. maculicollis-group with the species: D. brooksi spec. nov., D. ecuadoriensis spec. nov., D. maculicollis Fauvel, 1891, D. mexicanus spec. nov., D. panamaensis spec. nov., D. peruvianus spec. nov., and D. pumilio Bernhauer, 1929; D. schaumii-group with the species D. angustiformis spec. nov., D. argentinus spec. nov., D. brunneus spec. nov., D. curtipennis spec. nov., and D. schaumii Kraatz, 1860; D. verhaaghi-group with the two species D. verhaaghi spec. nov. and D. santacatarinae spec. nov.; D. nanus-group with the species D. apicipennis Cameron, 1922, D. nanus Erichson, 1839, D. parvulus Kraatz, 1860, and D. perplexus Cameron, 1922. D. formicetorum Bernhauer, 1927 is with unclear position among the named groups. A key to the species groups and to species is provided. The relation among groups, the ecology, and the geographic distribution is discussed. Nomenclatural Acts Diochus adisi spec. nov. – urn:lsid:zoobank.org:act:33DAA72A-B7E0-4806-BD59-8FC17FE1EF58 Diochus amazonensis spec. nov. – urn:lsid:zoobank.org:act:D2230764-A93A-46CF-B5F0-F4E6963E26DF Diochus angustiformis spec. nov. – urn:lsid:zoobank.org:act:BB731197-AF1B-458F-AE6B-BC32865D30C9 Diochus argentinae spec. nov. – urn:lsid:zoobank.org:act:2353FF33-7AEB-4B05-A9C8-EF6CCCC95684 Diochus ashei spec. nov. – urn:lsid:zoobank.org:act:949EFF27-4323-46C9-8F5D-F4731958CA14 Diochus brooksi spec. nov. – urn:lsid:zoobank.org:act:E45E737C-D6F4-45D2-AD3A-712C3578AE37 Diochus brunneus spec. nov. – urn:lsid:zoobank.org:act:7B393143-5E9A-4DE2-92D7-4458FAEF5B2B Diochus curtipennis spec. nov. – urn:lsid:zoobank.org:act:9F36420A-6AD4-4940-AAB0-A0535101A319 Diochus ecuadoriensis spec. nov. – urn:lsid:zoobank.org:act:0B0B68AB-0348-412D-A77B-EA722A5130C9 Diochus guianensis spec. nov. – urn:lsid:zoobank.org:act:BDD3E1B7-96A0-4ACE-BC32-4D24ADA1D2DB Diochus hanagarthi spec. nov. – urn:lsid:zoobank.org:act:00554886-6F3A-4FBA-9639-39AF0EE7E01B Diochus hermani spec. nov. – urn:lsid:zoobank.org:act:5C2FD0E5-BAFB-4AC4-8E80-9199884948B0 Diochus hibbsi spec. nov. – urn:lsid:zoobank.org:act:FA01A055-A996-4C60-9FE8-6756FDFA9A36 Diochus mexicanus spec. nov. – urn:lsid:zoobank.org:act:10213825-70EC-4B7F-BE1A-4FFD11B5D988 Diochus newtoni spec. nov. – urn:lsid:zoobank.org:act:FD5C80C7-1C1E-4C8C-9D48-8FEC23D9365F Diochus novus spec. nov. – urn:lsid:zoobank.org:act:3B902DCA-F381-4754-B88C-5825BC6E0B94 Diochus panamaensis spec. nov. – urn:lsid:zoobank.org:act:989703D5-6335-4E97-8772-B999831203C3 Diochus peruvianus spec. nov. – urn:lsid:zoobank.org:act:A3ED9480-CAC6-459D-9046-D1FE793F01EC Diochus plaumanni spec. nov. – urn:lsid:zoobank.org:act:4169DC68-8683-4290-A14A-62492505A4CA Diochus santacatarinae spec. nov. – urn:lsid:zoobank.org:act:99209529-EE6A-43A3-BE1F-413C5DF5CA1C Diochus schuelkei spec. nov. – urn:lsid:zoobank.org:act:4551D562-B65C-42EB-A4C5-5AA6F195F8D5 Diochus tricolor spec. nov. – urn:lsid:zoobank.org:act:5A551701-6B51-4659-B6A6-D2CBF83EA095 Diochus unicolor spec. nov. – urn:lsid:zoobank.org:act:5D7AB086-BCE1-4FEF-A732-1E210D4B3A87 Diochus verhaaghi spec. nov. – urn:lsid:zoobank.org:act:BBD1EC47-8638-4417-AE87-AC006B318FE1
Contributions to Entomology = Beiträge zur Entomologie, Bd. 67 Nr. 1 (2017)