#7
Chloropidae, Oscinellinae: Cadrema Walker, 1859. The species surely belongs to four spp. known from the coasts, islands and atolls of the Indian Ocean, those partly also occurring on coasts of the Pacific and Atlantic Oceans. Rainforests are a further preferred biotope. Nartshuk (2002, Entomological Review 82(3): 276-293 [English translation from Russian]) presents a key. Several further local keys exist. Actually 47 valid species. Genus easily to identify by the short or long black spur at the end of the hind tibia. Extremely quick flies, very difficult to catch also if resting nearby. Larval substrates include dead mollusks and xiphosurans, excrements of mammals, rotting plants and coconuts, cotton bolls, polluted honeydew on leaves and also the spadix of Araceae. Repeatedly reported as pollinators.