Dischistus Loew, 1855

Greathead, D. J. & Evenhuis, N. L., 2001, Annotated keys to the genera of African Bombylioidea (Diptera: Bombyliidae; Mythicomyiidae), African Invertebrates 42 (1820), pp. 105-224 : 156-157

publication ID	https://doi.org/10.5281/zenodo.7909975
persistent identifier	https://treatment.plazi.org/id/1F3087A6-FFB2-FF85-765B-FCB3FD87AB46
treatment provided by	Felipe (2023-05-08 20:16:42, last updated by Plazi 2023-11-09 02:54:28)
scientific name	Dischistus Loew
status

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Dischistus Loew View in CoL

Dischistus Loew, 1855: 45 (as subgenus of Bombylius Linnaeus ). Type species: Bombylius mystax Wiedemann, 1818 , by subsequent designation (Becker, 1913: 494).

Comments: Hesse (1938) correctly recognised the South African species D. mystax (Wiedemann) as genotype, and that Dischistus is very close to its Mediterranean counterpart, Acanthogeron , which Bowden (1973) formally reduced to a subgenus of Dischistus . It has since been regarded as a synonym of Dischistus , but as Acanthogeron spp. differ in wing venation and vestiture, and are therefore readily separated, it is convenient to recognise Acanthogeron as a subgenus. Dischistus sensu stricto all have a brown vestiture composed of long upright hair, but D. ( Acanthogeron ) spp. have much shorter and denser, pale hair.

Subgenus Dischistus Loew

Key: Southern Africa, Hesse (1938).

Distribution: Africa South of the Sahara: South Africa: 6 species: Kenya: 1 species; Dischistus holopticus Greathead. Distribution map in Greathead (1997).

Subgenus Acanthogeron Bezzi , stat. rev.

Acanthogeron Bezzi, 1925: 164 . Type species: Bombylius senex Meigen, 1820 View in CoL , by original designation. Lissomerus Austen, 1937: 33 . Type species: Lissomerus niveicomatus Austen, 1937 View in CoL , by original designation.

Key: Engel (1932 –7), Paramonov (1940 b), and Egypt, Efflatoun (1945) .

Distribution: Mediterranean Basin. North Africa: 13 species. Canary Islands: 1 species; Dischistus (A.) atlanticus Santos Abreu.

References

AUSTEN, E. E. 1937. The Bombyliidae of Palestine. London: British Museum (Natural History).

EFFLATOUN, H. C. 1945. A monograph of Egyptian Diptera. Part VI. Family Bombyliidae. Section 1: Subfamily Bombyliidae Homeophthalmae. Bulletin de la Societe Fouad ler d'Entomol ogie 29: 1 - 483.

ENGEL, E. O. 1932 - 37. Bombyliidae. Die Fliegen der Palaearktischen Region 4 (3): 1 - 619.

HESSE, A. J. 1938. A revision of the Bombyliidae (Diptera) of southern Africa. Annals of the South African Museum 34: 1 - 1053.

VERRALL, G. H. 1909. British flies. Vol. V. Stratiomyidae and succeeding families of the Diptera Brachycera of Great Britain. London: Gurney & Jackson.