Eulonchus is a genus of small-headed flies in the family Acroceridae. There are six described species in Eulonchus. The genus is found in North America. Adults have a metallic blue, green or sometimes purple coloration, giving them a jewel-like appearance. A common name for flies in the genus is the North American jewelled spider flies. Adults are also known as "sapphires" or "emeralds".
GENUS
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Eulonchus is a genus of small-headed flies in the family Acroceridae. There are six described species in Eulonchus. The genus is found in North America. Adults have a metallic blue, green or sometimes purple coloration, giving them a jewel-like appearance. A common name for flies in the genus is the North American jewelled spider flies. Adults are also known as "sapphires" or "emeralds".
==Species== These six species belong to the genus Eulonchus: Eulonchus halli Schlinger, 1960 (Hall's sapphire) Eulonchus marginatus Osten-Sacken, 1877 (Sombre Sapphire or Emerald) Eulonchus marialiciae Brimley, 1925 (Mary-Alice’s Emerald, Mary Alice's small-headed fly) Eulonchus sapphirinus Osten Sacken, 1877 (Northern Sapphire or Emerald) Eulonchus smaragdinus Gerstaecker, 1856 (Synonym: E. smaragdinus pilosus Schlinger, 1960 i c g) (Southern Emerald or Sapphire) Eulonchus tristis Loew, 1872 (Dusky Sapphire)
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