The Brachyopini (or Chrysogastrini) is a tribe of hoverflies. Unlike many members of this family these flies are generally darker and less colourful though some genera contain species with an attractive metallic lustre e.g. Chrysogaster. Some like Brachyopa are associated with sap runs where their larvae feed on decaying sap. Others are found in boggy areas where their often semiaquatic larvae feed on decaying organic matter.[1]
^Stubbs, Alan E.; Falk, Steven J. (1983). British Hoverflies: An Illustrated Identification Guide (2nd ed.). British Entomological & Natural History Society. pp. 268–283. ISBN1-899935-03-7.
^Shannon, Raymond C.; Aubertin, D. (1933). Syrphidae. Diptera Patagonia & South Chile. Vol. 4. London: The Trustees of the British Museum. pp. 120–170.