# Achalcus

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 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, 1987
Unrecognised species:
* Achalcus scutellaris Van der Wulp, 1891
Nomina dubia:
* Achalcus thoracicus (Philippi, 1865)
The following species were transferred 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: transferred 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: transferred to Enlinia
* †Achalcus latipennis Meunier, 1907: transferred to Medeterites
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