Stichopogoninae
References: Artigas, J.N. & Papavero, N. (1990): The American genera of Asilidae (Diptera): Keys for identification with an atlas of female spermathecae and other morphological details. V. Subfamily Stichopogoninae G.H. Hardy. - Boletin de la Sociedad de Biologia de Concepcion 61: 39-47; Concepcion.
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Face strongly inflated on its lower 3/4. Hairs of mystax occupying lower half of face or more. Epandrial halves separated, triangular and curved . . . . . Lasiopogon Loew, 1847
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| Face flat or slightly convex, as seen in profile. Hairs of mystax confined to lower margin of face, more or less tectiform. Epandrial halves completely fused, forming a single, characteristically trapezoid plate.
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Vein M3 ansent beyond discoidal cell (only four posterior cells present) . . . . . Townsendia Williston, 1895
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| Vein M3 present from discoidal cell to wing margin (five posterior cells present).
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Antennal flagellum globular, shorter than pedicel and scape together, with a bristle-like style at its apex, as long as flagellum. Face either covered with hairs or lower face hairy and a patch of hairs below antennae . . . . . Lissoteles Bezzi, 1910
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| Antennal flagellum elongate, longer than scape and pedicel together. Face flat, either swollen or flat on oral margin, mystax confined to lower half of face or to subcranial margin . . . . . Stichopogon Loew, 1847
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Contents: © Jorge N. Artigas et al., Fritz Geller-Grimm, 2003
Layout & images: © Fritz Geller-Grimm, 2003