Dasypogoninae
References: Artigas, J.N. & Papavero, N. (1988): The American genera of Asilidae (Diptera): Keys for identification with an atlas of female spermathecae and other morphological details. II. Key to the genera of Dasypogoninae Macquart, with descriptions of new genera and species and new synonymies. - Gayana. Zoologia. Universidad de Concepcion, Instituto Central de Biologia 52(3-4): 199-260; Concepcion.
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1.
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Antenna with three flagellomeres, the second minute. Fore tibial spur weak, sigmoid. First tarsomere of fore leg never with basal flange. All wing cells open, although sometimes cel cup almost closed at wing margin. Anatergite bare. Female tergite 10 with spines [Isopogonini]
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»2
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| Antenna with one or two flagellomeres. Other combinations of characters.
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»6
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2.
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Pulvilli present.
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»3
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| Pulvilli entirely absent.
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»5
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3.
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Mystax dense, occupying entire face, bristles longer at lower margin . . . . . Comantella Curran, 1923
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| Mystax thin, reduced to subcranial margin, with at most sparese hairs above mystax, and decreasing in density towards base of antennae when present.
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»4
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4.
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Male abdomen with only six visible segments, the last two (5 - 6) widened, flat, spatulate, covered with dense silvery pollen. Wing, in both sexes, spotted brown at crossveins and bifurcations, or brown almost to apex, including bifurcation of R4 and R5 . . . . . Nicocles Jaennicke, 1867
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| Male abdomen with seven visible segments, the last two (6 - 7) not modified as above. Wing hyaline or basal two-thirds brown, not spotted as above, or entirely infuscated . . . . . Cophura Osten Sacken, 1887
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5.
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Dorsocentral bristles erect and extending to mesonotal declivity. Face with dense fringe of long, adjacent, tectiform, drooping bristles, reaching nearly up to base of antennae. Scape and pedicel with stout, long, blunt bristles. Diameter of all femora uniform . . . . . Omninablautus Pritchard, 1935
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| Dorsocentral bristles recumbent when present, confined to mesonotal declivity. Mystax composed of hair-like bristles, never as above. Scape and pedicel without long, stiff, ventral bristles. Diameter of hind femora 1.3 - 1.5 times diameter of middle femora . . . . . Hodophylax James, 1933
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6.
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Veins CuA1 and M3 ending separately at wing margin (i.e. cell m3 open), if cell m3 is closed, veins CuA1 and M3 meet at wing margin. First flagellomere normally without small bristles on lower dorsal surface. Second flagellomere present or absent. Cell r1 open [Dasypogonini]
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»7
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| Veins CuA1 and M3 fused before wing margin (i.e. cell m3 closed and petiolate). First flagellomere with small bristles on lower dorsal surface. Cell r1 open or closed.
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»10
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7.
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Pulvilli absent . . . . . Parataracticus Cole, 1924
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| Pulvilli present.
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»8
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8.
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First flagellomere with a dorsal incision near its middle or apical third bearing a spine. Abdomen notoriously punctate . . . . . Taracticus Loew, 1872
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| First flagellomere always with a minute apical spine.
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»9
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9.
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At least three pairs of presutural dorsocentral bristles present . . . . . Lestomyia Williston, 1884
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| No presutural dorsocentral bristles, or, at least, these undistinguishable from pilosity . . . . . Saropogon Loew, 1847
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10.
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Marginal scutellar bristles present . . . . . [Lastaurini] Diogmites Loew, 1866
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| Marginal scutellar bristles absent . . . . . [Blepharepiini] Blepharepium Rondani, 1848<
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Contents: © Jorge N. Artigas et al., Fritz Geller-Grimm, 2003
Layout & images: © Fritz Geller-Grimm, 2003