Species Geron nigralis Roberts, 1929

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• Geron nigralis Roberts, F.H.S. 1929. A revision of the Australian Bombyliidae (Diptera). III. Proceedings of the Linnean Society of New South Wales 54: 553-583 [Date published 16 December] [571].

  Type data:

   Holotype ANIC, NSW.

  Type locality references:

  Evenhuis, N.L. & Greathead, D.J. 1999. World Catalog of Bee Flies (Diptera: Bombyliidae). Leiden, Netherlands : Backhuys xlviii+756 pp. [50].

Distribution

States

New South Wales, Queensland

Distribution References

Diagnosis

♂. Head: face rounded, shining black, bare; oral margin black, bare; frons black, silver tomentose lateral to antennal bases; vertex black, black pilose; occiput black, predominantly black pilose, sparse pale yellow tomentose ventro-laterally; gula black, black pilose; antennae black; segments I and II black pilose; segment III bare; antennal ratio: 4:1:5. Thorax: scutum and scutellum black, predominantly black pilose; few brown hairs intermixed; pleura black, intermixed black and brown pilose; halter stem brown, knob yellow. Legs: black; coxae black pilose; fore and mid femora with white scales, black pilose basally; hind femur with black scales, black pilose ventrally; tibiae and tarsi bare. Wing: infuscated dark brown basally, tinting extending to end of Sc, r-m crossvein, and IA veins; hyaline beyond to wing margin; veins dark brown; r-m crossvein 3/4 beyond base of discal cell; vein closing apex of discal cell sigmoid; Rt curved upward at wing margin; squama dark brown, fringe blackish brown. Abdomen: black; tergites intermixed white and black pilose; sternites sparser intermixed white and black pilose; apex black, black pilose. Genitalia: not dissected.
♀. Head: face slightly rounded, shining black, dull gray laterally, bare; oral margin gray, bare; frons black, silver tomentose below ocellar tubercle and lateral to antennal bases, bare elsewhere; vertex black, short black pilose; occiput black above, gray elsewhere, white pilose, white tomentose above and laterally; gula gray, bare; antennae black; segments I and II black pilose; segment III bare; antennal ratio: 4:1:5. Thorax: scutum and scutellum black with gray margins, intermixed yellow and black pile overlying yellow recumbent pile; pleura gray, white pilose and tomentose; halter stem brown, knob yellowish white. Legs: coxae black, white pilose; fore femur black-brown; mid and hind femora orange; all femora white pilose ventrally; tibiae and tarsi brown, bare. Wing: same as in ♂. Abdomen: tergites black, dense white to pale yellow recumbent pilose; sternites gray, white erect pile overlying white recumbent pile.

Diagnosis References

Evenhuis, N.L. 1979. Studies in Pacific Bombyliidae (Diptera). II. Revision of the genus Geron of Australia and the Pacific. Pacific Insects 21: 13-55 [Date published 30 August] [46]

History of changes