Among the key characters of genus Taeniaptera are: the arista bare, a long anal cell, and a palpus with non-parallel sides. Usually the central darkened wing band is convex on both the basal side and the apical side, so the band is like a rounded spot. Members of this genus are often found around human habitations, attracted by the presence of dung, decaying vegetable matter, and the like.
Photo location: Suchitoto, Cuscatlán department, El Salvador.
American Insects site