Oratostylum Ricardo, 1925

Londt, Jason G. H., 1983, The Genus Daspletis Loew, 1858 And The Description Of Two New Genera, Anasillomos And Remotomyia (Diptera: Asilidae: Stenopogoninae), Journal of the Entomological Society of Southern Africa 46 (2), pp. 283-308 : 299-301

publication ID	https://doi.org/ 10.5281/zenodo.11781
publication LSID	lsid:zoobank.org:pub:B9781793-EDAD-4863-B31E-C1200459ADDB
DOI	https://doi.org/10.5281/zenodo.4333164
persistent identifier	https://treatment.plazi.org/id/506A1E24-E05D-BC67-FF75-FA8EF6B75914
treatment provided by	Torsten
scientific name	Oratostylum Ricardo, 1925
status

Treatment

Oratostylum Ricardo, 1925 View in CoL

Oratostylum Ricardo, 1925: 260 View in CoL . Type species: O. lepidum Ricardo 1925: 261 View in CoL , by original designation.

I have examined Ricardo's type material of O. lepidum in the BMNH and, as Hull (1962) gives such a good description of this monotypic genus, I merely present drawings of the male genitalia for comparative purposes ( Figs 32- 34 View Figs 31-34 ). Oratostylum is very similar to Remotomyia but has a very prominent facial swelling ( Fig. 31 View Figs 31-34 ) unlike that found in Remotomyia ( Fig. 36 View Figs 35-39 ). Oratostylum lepidum has long palps which reach the level of the lower facial margin whereas Remotomyia species usually have shorter palps (in the case of R. longipalpus they are long).

MATERIAL EXAMINED. ZIMBABWE; 1 ♂ (lectotype), Matopos , 3. x. 19 2 0, Rhodesian Museum ( BMNH) ; 1 ♀ (paralectotype), Forestvale , 2 0.viii..1922, Rhodesian Museum ( BMNH) ; 1 ♀ (paralectotypc), Bulawayo , 7. ix. 19 23, R. Stevenson ( BMNH) ; 1 ♀, Khami Ruins , ı 8. viii. 1923, Rhodesian Museum ( BMNH) . NAMIBIA: 1 ♀, Damaraland, Okombahe area 22 km W Uis Mine , 6. ii. 19 74, M. E. Irwin, 830 m, gravel plain ( NM) . SOUTH AFRICA: Natal: 2 ♂, Lebombo foothills 5 km N Josini , 2732AC, 28. viii. 1982, under ﬁg tree, B. Stuckenberg ( NM) . Ricardo (1925) did not designate a holotype; I therefore designate the ♂ from Matopos as lectotype and the other specimens mentioned by Richardo as paralectotypes. The ♂ from Forestvale and ♂ from Umguza River are no longer in the BMNH.