Valid Names Results

Rolaspis euryopis Williams, 1955 (Diaspididae: Rolaspis)

Rolaspis euryopis Williams 1955a: 252-254. Type data: SOUTH AFRICA: Natal, Drakensberg, Cathedral Peak Area, on Euryops tysonii, ?/07/1946, by W.E. Marriott. Holotype, unknown, Type depository: London: The Natural History Museum, England, UK; accepted valid name Notes: The type series had a sender number of SN2595. Illustr.

Families: 1 | Genera: 1

Countries: 1

Systematics: This species comes close to Rolaspis compositae also described from South Africa. The latter species differs, however, in having two marginal and no submarginal ducts on the sixth segment. Also, the ducts on segments 3 to 5 are in 2 regular parallel rows whilst in euryopis these ducts occupy single rows on the posterior edges of the segments. Both species are similar in having a very narrow sclerotic band between the median lobes which is difficult to see in some specimens. In this respect these 2 species differ from all the other members of the genus Rolaspis which have the median lobes clearly yoked basally. It is possible that euryopis and compositae belong to a different genus but this cannot be determined until further species have been found (Williams, 1955a).
Structure: Scale of adult female white, smooth, elongate and moderately convex; exuviae pale brown. Male scale about half the length of female scale, white, sides roughly parallel, posterior end rounded, uncarinated (Williams, 1955a).
General Remarks: Description and illustration by Williams (1955a).