Laphystiinae
References: Artigas, J.N. & Papavero, N. & Costa, C.A. da (1995): The American genera of Asilidae (Diptera): Keys for identification with an atlas of female spermathecae and other morphological details. VIII. Subfamily Laphystiinae G.H. Hardy, with descriptions of five new genera and species. - Arquivos de Zoologia do Estado de Sao Paulo 34(1): 1-55; Concepcion.
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1.
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Dorsocentral bristles extending to anterior slope of mesonotum and always visible. Scutellar margin with 10 - 20 long bristles . . . . . Zabrops Hull, 1957
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| Dorsocentral bristles, if present, restricted to post-sutural area of mesonotum. Scutellar margin with 2 - 4 strong bristles or bare.
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Antenna with 3 flagellomeres . . . . . Laphystia Loew, 1847
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| Antenna with 1 or 2 flagellomeres.
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3.
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Face extremely narrow, at level of antennae about 1/5 head width. All wing cells open. Scutellar margin with 2 - 4 strong bristles . . . . . Psilocurus Loew, 1874
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| Face wider, 1/4 to 1/3 head width. Cell r5 closed and petiolate. Scutellar margin without strong bristles . . . . . Perasis Hermann, 1906
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Contents: © Jorge N. Artigas et al., Fritz Geller-Grimm, 2003
Layout & images: © Fritz Geller-Grimm, 2003