Trypetidae, Otitidae, Helomyzidae, And Clusiidae of Guam (Diptera) Author Mailoch, J. R. Whashington, D. C. text 1942 1942-06-01 Bernice P. Bishop Museum Honolulu, Hawaii Insects of Guam I 201 210 book chapter http://doi.org/10.5281/zenodo.5163626 607dcc60-66ea-494e-b613-ee258734404c 5163626 Genus CYCASIA , new genus Postocular bristles pale, but fine and slender, two supraorbital pairs of bristles, both reclinate, and three pairs of incurved infraorbitals; outer vertical bristles of moderate length and inner pair very long and erect, situated on short elevated bases; eye higher than long, face vertical; third antenna! segment not acute at apex above; arista short pubescent; proboscis short and stout. Presutural bristle strong; dorsocentral pair a little behind a line drawn between supra-alars; sternopleural, mesopleural, and pteropleural strong; scutellum slightly flattened, bare on disk, with four long bristles. Femora unspined; mid tibia with short posterior setulae and one stout apical ventral bristle; hind tibia with a series of anterodorsal setulae. First wing vein setulose from humeral cross vein to apex above, bare below; third vein with three or four setulae at base above, other veins bare; fourth vein slightly dipped down into discal cell before inner cross vein; cross vein closing anal cell almost erect, cell without an apical lower lobe. Fifth abdominal tergite of male as long as two preceding tergites combined, rounded in apical outline, with a pair of prominent glossy black discal bullae and a series of quite long marginal bristles. Genotype: Cycasia oculata , new species . This genus will not run down satisfactorily to any in Hendel's key to the genera of the family (Wien. ent. Zeitung, 33: 73, 1914). It undoubtedly belongs to the segregate or tribe Euribiini of Hendel's latest paper on the family (Die Fliegen der palaearktischen Region, 49, Trypetidae , 1927).