Stiletto Fly
Ozodiceromyia (?)
Resting on rock near flowing water, Reynolds Canyon, Sierra Ancha, Gila Co., Arizona, USA. 4 June 2010.
Therevidae -- Stiletto Fly Family
For sure there are a number of biting fly species that can annoy people as they enjoy flowing waters in the deep canyons that slice out of the Arizona's high country. Despite their name and appearance, stiletto flies are not among them. Instead the adults of these insects visit flowers for nectar or simply bask in the sunshine. The immature larvae live underground in moist sandy areas or in rotting wood - there they prey on various other insect larvae. There are many similar-looking species ranging from 3 to 15 mm.