Subfamilies
Apocleinae
Asilinae
Dasypogoninae
Dioctriinae
Laphriinae
Laphystiinae
Leptogastrinae
Ommatiinae
Stenopogoninae
Stichopogoninae
Trigonomiminae
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Key to the genera of the Nearctic Laphriinae
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Laphriinae
References: Artigas, J.N. & Papavero, N. & Pimentel, N.P. (1988): The American genera of Asilidae (Diptera): Keys for identification with an atlas of female spermathecae and other morphological details. IV. Key to the genera of Laphriinae Macquart (except tribe Atomosiini Hermann). - Boletim do Museu Paraense Emilio Goeldi. Serie Zoologia 4(2): 211-256; Belem. Artigas, J.N. & Papavero, N. & Serra, A.L. (1991): The American genera of Asilidae (Diptera): Keys for identification with an atlas of female spermathecae and other morphological details. VI. Tribe Atomosiini Hermann (Laphriinae), with descriptions of two new genera and three new species, and a catalogue. - Gayana. Zoologia. Universidad de Concepcion, Instituto Central de Biologia 55(1): 53-85; Concepcion.
In addition:: Bromley, S.W. (1934): The laphriine robber flies of North America (Diptera: Asilidae). - Columbus: Unpublished Ph.D. Thesis, Ohio State University Press 14: 349 pp.
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Postmetacoxal area membranous.
ventral view - latero-ventral view
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 | Postmetacoxal area with a transverse sclerotized bridge.
ventral view - latero-ventral view
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Face more or less flat, never strongly excavated or gibbose. Proboscis almost triangular in cross-section . . . . . Dasytrichini: Orthogonis Hermann, 1914
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 | Face excavated and gibbose. Proboscis either subcylindrical, with tuft of long bristles above, or laterally or dorsoventrally compressed (at least in apical half).
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Proboscis clearly flattened laterally . . . . . [Laphriini]
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 | Proboscis clearly flattened dorsoventrally, at least on its apical half . . . . . [Andrenosomini]
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R2+3 and R4 connected by short a extra crossvein (three submarginal cells present) . . . . . Pogonosoma Rondani, 1856
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 | R2+3 and R4 not connected by a short extra crossvein (only two submarginal cells present)
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Large (over 25 mm long) fuzzy flies, resembling bumblebees. Entire body densely haired. Second palpal segment enormously swollen and clavate . . . . . Dasylechiini: Dasylechia Williston, 1907
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Anatergite with soft or coarse hairs, usually without spike-like bristles or only one bristle . . . . . Atomosiella Wilcox, 1937
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Frons extremely widened, with slopes definitely divergent. Scape several times longer than pedicel . . . . . Cerotainia Schiner, 1868
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 | Frons relatively narrow, with convergent slopes. Scape never several times longer than pedicel . . . . . Atomosia Macquart, 1838
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Contents: © Fritz Geller-Grimm, Jorge N. Artigas, 2007
Layout & images: © Fritz Geller-Grimm, 2007
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