. Fig. 18.— Geron albescens, Brun., wing. bare except for a few short hairs below femora and the usual minute tibial bristles. Wings quite clear, veins pale yellowish on basal half; halteres yellowish, knobs bright pale yellow. Length, 5-8 mm. Eedescribed from the original type from Balugaon, Puri Distr., Orissa, 14. xii. 1908 {Gaunter), and a second d1 from Tambi, Satara Distr., Bombay, 2100 ft., 22-26. iv. 1912 {Gravely), both in the Indian Museum. The only defiuite character by which this species differs from argentifrons seems to be the pale posterior femora in the J and the larger size. G
. Fig. 18.— Geron albescens, Brun., wing. bare except for a few short hairs below femora and the usual minute tibial bristles. Wings quite clear, veins pale yellowish on basal half; halteres yellowish, knobs bright pale yellow. Length, 5-8 mm. Eedescribed from the original type from Balugaon, Puri Distr., Orissa, 14. xii. 1908 {Gaunter), and a second d1 from Tambi, Satara Distr., Bombay, 2100 ft., 22-26. iv. 1912 {Gravely), both in the Indian Museum. The only defiuite character by which this species differs from argentifrons seems to be the pale posterior femora in the J and the larger size. Grenus ITSIA, Latr. Usia, Latreille, Hist. Nat. Crust. Ins. xiv, p. 300 (1804). Volucella, Fabricius {nee Geoff.), Fnt. Syst. iv, p. 412 (1794); id., Syst. Antl. p. 114 (1805); Meigen, Klass. i, p, 194 (1804). Genotype, Volucella florea, P. (Europe) ; by Eondani's desig- nation. Eather small bare or nearly bare flies, sometimes of metallic ground-colour, sometimes with yellow and black markings. Head hemispherical, small, set rather low on the thorax; epistome short, proboscis prominent, at the base membranous, apical part horny with extremely narrow labella ; palpi short, united to the basal part of the membranous portion, which is entirely with- drawable within the mouth-border. Antennae short, porrect, hardly longer than head, approximate at base ; the first two joints subequal ; 3rd elongate, spindle-shaped above, blunt, with spines
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Keywords: ., bookcentury1900, bookcollectionbiod, bookdecade1920, bookyear1920
