. Bulletin - United States National Museum. Science. LAPHRIINAE ROBBER FLIES OF THE WORLD 321. Text-Figure 21.—Laphria gibbosus Linnaeus. Genus Laphria Meigen Fiqtjees 233, 607, 1211, 1215, 2079, 2084, 2135, 2162 Lapria Meigen, Nouvelle classification . ., p. 25, 40, 1800, lapsus. Laphria Meigen, Mag. Insectenkunde, vol. 2, p. 270, 1803. Emendation. Type of genus: Asilus gibbosus Linne, 1758. Designated by Latreille, 1810, the first of six included species. Rhopalocera Megerle (Ms.), in Meigen, Systematische Beschrei- bung der . . zweifliigligen Insekten, vol. 2, p. 301, 1820. Name without spe
. Bulletin - United States National Museum. Science. LAPHRIINAE ROBBER FLIES OF THE WORLD 321. Text-Figure 21.—Laphria gibbosus Linnaeus. Genus Laphria Meigen Fiqtjees 233, 607, 1211, 1215, 2079, 2084, 2135, 2162 Lapria Meigen, Nouvelle classification . ., p. 25, 40, 1800, lapsus. Laphria Meigen, Mag. Insectenkunde, vol. 2, p. 270, 1803. Emendation. Type of genus: Asilus gibbosus Linne, 1758. Designated by Latreille, 1810, the first of six included species. Rhopalocera Megerle (Ms.), in Meigen, Systematische Beschrei- bung der . . zweifliigligen Insekten, vol. 2, p. 301, 1820. Name without species. Sullaphria Becker (Ms.), in Hennig, 1941, with species asilina; both without characterization. Usually large and robust flies, never very slender; characterized by the prominent and gibbous face. The abundant pile is often matted and appressed, especially on the abdomen. The proboscis is elongate, very strongly compressed laterally, with bluntly rounded apex and the palpus is cylindrical with only the basal segment open. Except for a subapical pit or groove, the third antennal segment is unmodified. The lower end vein of the discal cell is long and nearly parallel with the upper margin of the cell. Metanotal callosity bare in the type of genus and in European species and in many North American species. Length in the type of genus 27 mm.; more often 15 to 20 mm. in length and in some species as little as 10 mm. Head, lateral aspect: The head is long; both face and occiput are prominent. The face is especially prominent and gibbous on the lower half or more, but less on the upper third, and the intervening area is con- cave. The occiput is tumid in the middle, and espe- cially below, due to the gradual and pronounced recession of the eye. Pile of occiput dense, long and coarse, except behind the vertex, where there is com- paratively little pile; bristles are very weak or absent. The proboscis is elongate, extending well beyond the face, strongly compressed laterally, blu
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