Achalcus Explained

Achalcus is a genus of flies in the family Dolichopodidae.^[1]

Species

• Achalcus bicolor Pollet, 2005^[2]
• Achalcus bilineatus Pollet, 2005^[1]
• Achalcus bimaculatus Pollet, 1996^[3]
• Achalcus brevicornis Pollet, 2005^[1]
• Achalcus britannicus Pollet, 1996^[3]
• Achalcus californicus Pollet & Cumming, 1998^[4]
• Achalcus cinereus (Haliday, 1851)
• Achalcus costaricensis Pollet, 2005^[1]
• Achalcus cyanocephalus Pollet, 2005^[1]
• Achalcus dytei Pollet & Cumming, 1998^[4]
• Achalcus flavicollis (Meigen, 1824)
• †Achalcus latipennis Meunier, 1907
• Achalcus longicercus Pollet, 2005^[2]
• Achalcus maculipennis Pollet, 2005^[1]
• Achalcus micromorphoides Pollet, 2005^[1]
• Achalcus niger Pollet, 2005^[1]
• Achalcus nigropunctatus Pollet & Brunhes, 1996^[3]
• Achalcus oregonensis (Harmston & Miller, 1966)
• Achalcus phragmitidis Pollet, 1996^[3]
• Achalcus polleti Negrobov & Selivanova, 2010^[5]
• Achalcus similis Pollet & Cumming, 1998^[4]
• Achalcus thalhammeri Lichtwardt, 1913
• Achalcus tibialis Pollet, 2005^[1]
• 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 moved to the genus Australachalcus:^[1]

• Achalcus albipalpus Parent, 1931: now Australachalcus albipalpus (Parent, 1931)
• Achalcus brevinervis Van Duzee, 1930:^[6] now Australachalcus brevinervis (Van Duzee, 1930)
• Achalcus longicornis Van Duzee, 1930:^[6] now Australachalcus longicornis (Van Duzee, 1930)
• Achalcus edwardsae Van Duzee, 1930^[6] (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:^[6] 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

Notes and References

1. Pollet. M.. Systematic revision of Neotropical Achalcus and a related new genus (Diptera: Dolichopodidae, Achalcinae) with comments on their phylogeny, ecology and zoogeography.. Zoological Journal of the Linnean Society. 2005. 143. 1. 27–73. 10.1111/j.1096-3642.2004.00141.x. free.
2. Pollet. M. A. A.. Nearctic Achalcinae with a first Australachalcus species of North America (Diptera: Dolichopodidae). European Journal of Entomology. 2005. 102. 2. 279–288. 10.14411/eje.2005.039. free.
3. Pollet. M.. Systematic revision and phylogeny of the Palaearctic species of the genus Achalcus Loew (Diptera: Dolichopodidae) with the description of four new species.. Systematic Entomology. 1996. 21. 353–386. 10.1111/j.1365-3113.1996.tb00604.x.
4. Pollet. M.. Cumming. J.M.. 1998. Systematic revision of Nearctic species of Achalcus Loew (Diptera: Dolichopodidae) with comments on their phylogeny, ecology and zoogeography. Systematic Entomology. 23. 4. 371–385. 10.1046/j.1365-3113.1998.00062.x.
5. O.P.. Negrobov. O.V.. Selivanova. A new species of the genus Achalcus Low, 1857 (Diptera: Dolichopodidae) from Far East region of Russia. Caucasian Entomological Bulletin. 2010. 6. 1. 123–124. 10.23885/1814-3326-2010-6-1-123-124. free.
6. Van Duzee. M. C.. Dolichopodidae. Diptera of Patagonia and South Chile. . 1930. 5. 1. 1–92.