Achalcus
Introduction '''''Achalcus''''' is a genus of flies in the family Dolichopodidae.
Species *''Achalcus bicolor'' Pollet, 2005*''Achalcus bilineatus'' Pollet, 2005*''Achalcus bimaculatus'' Pollet, 1996*''Achalcus brevicornis'' Pollet, 2005*''Achalcus britannicus'' Pollet, 1996*''Achalcus californicus'' Pollet & Cumming, 1998*''Achalcus cinereus'' (Haliday, 1851)*''Achalcus costaricensis'' Pollet, 2005*''Achalcus cyanocephalus'' Pollet, 2005*''Achalcus dytei'' Pollet & Cumming, 1998*''Achalcus flavicollis'' (Meigen, 1824)*†''Achalcus latipennis'' Meunier, 1907*''Achalcus longicercus'' Pollet, 2005*''Achalcus maculipennis'' Pollet, 2005*''Achalcus micromorphoides'' Pollet, 2005*''Achalcus niger'' Pollet, 2005*''Achalcus nigropunctatus'' Pollet & Brunhes, 1996*''Achalcus oregonensis'' (Harmston & Miller, 1966)*''Achalcus phragmitidis'' Pollet, 1996*''Achalcus polleti'' Negrobov & Selivanova, 2010*''Achalcus similis'' Pollet & Cumming, 1998*''Achalcus thalhammeri'' Lichtwardt, 1913*''Achalcus tibialis'' Pollet, 2005*''Achalcus utahensis'' (Harmston & Miller, 1966)*''Achalcus vaillanti'' Brunhes, 1987Unrecognised species:*''Achalcus scutellaris'' Van der Wulp, 1891''Nomina dubia'':*''Achalcus thoracicus'' (Philippi, 1865)The following species were moved to the genus ''Australachalcus'':*''Achalcus albipalpus'' Parent, 1931: now ''Australachalcus albipalpus'' (Parent, 1931)*''Achalcus brevinervis'' Van Duzee, 1930: now ''Australachalcus brevinervis'' (Van Duzee, 1930)*''Achalcus longicornis'' Van Duzee, 1930: now ''Australachalcus longicornis'' (Van Duzee, 1930)*''Achalcus edwardsae'' Van Duzee, 1930 (originally transferred to ''Enlinia''): now ''Australachalcus edwardsae'' (Van Duzee, 1930)*''Achalcus melanotrichus'' Mik, 1878: now ''Australachalcus melanotrichus'' (Mik, 1878)*''Achalcus chaetifemoratus'' Parent, 1933: now ''Australachalcus chaetifemoratus'' (Parent, 1933)*''Achalcus luteipes'' Parent, 1933: now ''Australachalcus luteipes'' (Parent, 1933)*''Achalcus medius'' Parent, 1933: now ''Australachalcus medius'' (Parent, 1933)*''Achalcus minor'' Parent, 1933: now ''Australachalcus minor'' (Parent, 1933)*''Achalcus minusculus'' Parent, 1933: now ''Australachalcus minusculus'' (Parent, 1933)*''Achalcus minutus'' Parent, 1933: now ''Australachalcus minutus'' (Parent, 1933)*''Achalcus nigroscutatus'' Parent, 1933: now ''Australachalcus nigroscutatus'' (Parent, 1933)*''Achalcus relictus'' Parent, 1933: now ''Australachalcus relictus'' (Parent, 1933)*''Achalcus separatus'' Parent, 1933: now ''Australachalcus separatus'' (Parent, 1933)Other synonyms:*''Achalcus atratus'' Van Duzee, 1930: moved to ''Enlinia''*''Achalcus caudatus'' Aldrich, 1902: synonym of ''Micromorphus albipes'' (Zetterstedt, 1843)*''Achalcus depuytoraci'' (Vaillant & Brunhes, 1980): synonym of ''A. cinereus'' (Haliday, 1851)*''Achalcus pallidus'' (Zetterstedt, 1843): synonym of ''A. flavicollis'' (Meigen, 1824)*''Achalcus pygmaeus'' (Zetterstedt, 1855): synonym of ''A. cinereus'' (Haliday, 1851)*''Achalcus sordidus'' Aldrich, 1896: moved to ''Enlinia''The following species have been placed by some authors in this genus in error:*''Achalcus calcaratus'' Becker, 1918: actually ''Eutarsus calcaratus'' (a synonym of ''Syntormon'' (''Drymonoeca'') ''aulicus'') in ''Syntormon''*''Achalcus pallipes'' Olejnichek & Bartak, 1997: actually ''Systenus pallipes'' in ''Systenus''
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