. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES AND MELANDER: CLASSIFICATION OF INSECTS 337 Cosmopolitan, dung flies. (Borborus (=Cypsela), Scatophora ( = Olina), Sphserocera (Fig. 643)). {CYPSELWM, SPHM- ROCERIDM) BORBORIDiE Hind metatarsi not short and thick 117 117. Postvertical bristles converging, presutural dorsocentral bristle present, fronto-orbital bristles directed outward, interfrontal cross-bristles usually present, one sternopleural bristle. (If. Figs. 640-646. Pallopteridse, Lonchaeidae, Thyreophoridae, Borboridse, Leptoceratidae, Astiidse, Cana
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. BRUES AND MELANDER: CLASSIFICATION OF INSECTS 337 Cosmopolitan, dung flies. (Borborus (=Cypsela), Scatophora ( = Olina), Sphserocera (Fig. 643)). {CYPSELWM, SPHM- ROCERIDM) BORBORIDiE Hind metatarsi not short and thick 117 117. Postvertical bristles converging, presutural dorsocentral bristle present, fronto-orbital bristles directed outward, interfrontal cross-bristles usually present, one sternopleural bristle. (If. Figs. 640-646. Pallopteridse, Lonchaeidae, Thyreophoridae, Borboridse, Leptoceratidae, Astiidse, Canaceidae 640. Palloptera, head from side. Pallopteridse. 641. Lonchaea, wing. Lonchseidse. 642. Thyreophora, head in profile view. Thyreophoridae. 643. Spheerocera, dorsal aspect (Howard) Borboridse. 644. Leptocera, wing (Spuler) Leptoceratidse. 645. Astia, wing. Astiidse. 646. Canace, wing. Canaceidse. 118. preapical tibial bristles are present see Trichoscelidse, couplet 111). Seashore species. (Tethina ( = Rhicnoessa), Neopel- omyia, Pelomyia) TETHINIDiE Postvertical bristles diverging or absent, if (Anthomyzidae, coup- let 123) converging then presutural dorsocentral bristles are not developed and the two prominent fronto-orbital bristles are reclinate 118 Preapical tibial bristles present; postocellar bristles diverging; two reclinate and one inclinate fronto-orbital bristle present;. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
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