Wikipedia
Lonchoptera
Lonchoptera, a genus of spear-winged flies ( Lonchopteridae), are tiny to small (2-5mm), slender, yellow to brownish-black bristly Diptera. Their common name refers to their subacute (pointed) wings, which have a distinct and sexually dimorphic venation. The larvae are dorsally flattened, with two pairs of head bristles, and feed on rotting vegetable matter., including in one case brussels sprouts.
This genus can be distinguished from other spear-winged flies by several traits:
- foreleg tibiae have dorsal setae in the middle
- foreleg tarsi thinner than foreleg tibiae
- pointed wingtip without apical brown spot.