Omaliini W.S. MacLeay, 1825

Asenjo, Angélico, Irmler, Ulrich, Klimaszewski, Jan, Chandler, Donald S., Fierros-López, Hugo Eduardo & Vieira, Juliana S., 2019, Staphylinidae (Insecta: Coleoptera) in Latin America: synopsis, annotated catalog, diversity and distribution, Zootaxa 4621 (1), pp. 1-406 : 16-18

Tribe Omaliini W.S. MacLeay, 1825

0007. Acrolocha Thomson, 1858: 38

Type species: Omalium striatum Gravenhorst, 1802

Elonium Leach in Samouelle, 1819: 175 [invalid, rejected by ICZN 1993: 164 (Opinion 1722)]

Type species: Omalium striatum Gravenhorst, 1802

Only one species is known in this genus from Central America.

Characters/Description: Navarrete-Heredia et al. 2002: 34 (characters in key); Thayer 2003: 315 (characters in key).

Distribution.

Central America: Mexico.

Other regions: Nearctic, Palaearctic.

0008. Crymus Fauvel, 1904a: 92

Type species: Crymus antarcticus Fauvel, 1904

Arpediomimus Cameron, 1917a: 277 [synonymized by Steel 1970: 240]

Type species: Arpediopsis falklandicus Cameron, 1917

Arpediopsis Cameron, 1917b: 124 [synonymized by Steel 1970: 240]

Type species: Arpediopsis falklandicus Cameron, 1917

Only one species is known in this genus from South America and Falkland Isl.

Characters/Description: Steel 1964: 348 (characters).

Key: Steel 1964: 349 (species of genus).

Distribution.

South America: Argentina, Falkland Isl.

Other regions: Australian, Antarctic.

0009. Dropephylla Mulsant & Rey, 1880: 242 ( Fig. 8 )

Type species: Omalium lucidum Erichson, 1839

Only one species is known from Central America.

Characters/Description: Navarrete-Heredia et al. 2002: 35 (characters in key); Thayer 2003: 315 (characters in key).

Distribution.

Central America: Mexico.

Other regions: Nearctic, Palearctic, Oriental.

0010. Ischnoderus Fauvel, 1867: 46

Type species: Omalium insigne Fairmaire & Germain, 1862

Subgenera:

Ischnoderus Fauvel, 1867: 46 [*]

Type species: Omalium insigne Fairmaire & Germain, 1862

Walkerellus Bernhauer, 1939d: 203 Type species: Ischnoderus paradoxus Bernhauer, 1939

2 species are included in this genus from South America.

Characters/Description: Coiffait & Sáiz 1968: 448 (characters in key), 454 (characters).

Distribution.

South America: Chile, Argentina.

Other regions: Australian.

0011. Omaliopsis Jeannel, 1940: 118

Type species: Omalium africanum Fauvel, 1907

3 species are included in this genus from Central and South America.

Characters/Description: Coiffait & Sáiz 1968: 449 (characters in key), 451 (characters); Navarrete-Heredia et al. 2002: 35 (characters in key); Thayer 2003: 315 (characters in key).

Distribution.

Central America: Mexico.

South America: Chile, Argentina.

Other regions: Nearctic, Ethiopian, Madagascan, Oriental, Australian.

0012. Omalium Gravenhorst, 1802: 111 ( Fig. 9 )

Type species: Staphylinus rivularis Paykull, 1789

Homalium Ljungh, 1804: 74 [synonymized by Blackwelder 1952: 188]

Type species: Staphylinus rivularis Paykull, 1789

Homalium Agassiz, 1846: 258 [synonymized by Blackwelder 1952: 188]

Type species: Staphylinus rivularis Paykull, 1789

Homalium Gemminger & Harold, 1868: 665 [synonymized by Blackwelder 1952: 189]

Type species: Staphylinus rivularis Paykull, 1789

Ochthexenus Motschulsky, 1860b: 546 [synonymized by Fauvel 1869: 493]

Type species: Staphylinus rivularis Paykull, 1789

10 species are included in this genus from Latin America.

Characters/Description: Blackwelder 1943: 53 (characters); Navarrete-Heredia et al. 2002: 34 (characters in key); Thayer 2003: 315 (characters in key).

Key: Blackwelder, 1943: 54 (species of the West Indies).

Distribution.

West Indies: Cuba, Jamaica, Haiti, Dominican Republic.

Central America: Mexico, Guatemala, Honduras, El Salvador.

South America: Bolivia, Chile, Argentina.

Other regions: Nearctic, Palaearctic, Ethiopian, Madagascan, Oriental, Australian.

0013. Phloeonomus Heer, 1839: 184 ( Fig. 10 )

Type species: Omalium pusillum Gravenhorst, 1806

Subgenera:

Phloeonomodes Smetana, 1964: 163 , 168

Type species: Omalium minimus Erichson, 1839

Phloeonomus Heer, 1839: 184 [*]

Type species: Omalium pusillum Gravenhorst, 1806

13 species are included in this genus from Latin America.

Characters/Description: Blackwelder 1943: 51 (characters); Navarrete-Heredia et al. 2002: 34 (characters in key); Thayer 2003: 315 (characters in key).

Distribution.

West Indies: Cuba, Jamaica, Dominican Republic, Puerto Rico, Guadeloupe, Grenada, Trinidad-Tobago.

Central America: Mexico, Guatemala, Honduras, Nicaragua, Costa Rica, Panama.

South America: Colombia, Venezuela, Brazil, Argentina.

Other regions: Nearctic, Palaearctic, Ethiopian, Madagascan, Oriental, Australian, Oceanic.

0014. Phyllodrepa Thomson, 1859: 52 ( Fig. 11 )

Type species: Staphylinus floralis Paykull, 1789

5 species are included in this genus from South America.

Distribution.

South America: Venezuela, Peru, Argentina.

Other regions: Nearctic, Palaearctic, Oriental, Australian.

0015. Xenanthobium Coiffait & Sáiz, 1968: 452

Type species: Anthobium andicola Fauvel, 1867

Only one species is known from and is restricted to South America.

Characters/Description: Coiffait & Sáiz 1968: 448 (characters in key).

Distribution.

South America: Chile.

0016. Xylodromus Heer, 1839: 174

Type species: Omalium depressum Gravenhorst, 1802

Drephopylla Fiori, 1900: 90 , 93 [synonymized by Luze 1906: 493]

Type species: Omalium depressum Gravenhorst, 1802

Etheothassa Thomson, 1858: 38 [synonymized by Luze 1906: 493]

Type species: Omalium deplanatum Gyllenhal, 1810

Omalissus Broun, 1893: 1042 [synonymized by Cameron 1945b: 782]

Type species: Omalissus castaneus Broun, 1893

3 species are included in this genus from Central and South America.

Characters/Description: Navarrete-Heredia et al. 2002: 34 (characters in key), 35 (characters in key as Dropephylla ); Thayer 2003: 315 (characters in key), 315 (characters in key as Dropephylla ).

Distribution.

Central America: Mexico.

South America: Venezuela, Chile.

Other regions: Nearctic, Palaearctic, Australian.

Figures

FIGURES 4–15. Habitus; Glypholomatinae (4–5), Microsilphinae (6), Omaliinae (7–11), Proteininae (12–15); 4, after Thayer 1997; 5, after Thayer 1997; 6, after Scheerpeltz 1972d; 7, after Thayer 2003; 8, after Thayer 2003; 9, after Thayer 2003; 10, after Thayer 2003; 11, after Scheerpeltz 1972d; 12, after Steel 1966; 13, after Cuccodoro 2011; 14, after Bierig 1940; 15, after Frank & Thomas 1984b; slightly modified. Scale bars: 1 mm.