Valid Names Results

Greeniella cassida (Hall & Williams, 1962) (Diaspididae: Greeniella)

Gymnaspis cassida Hall & Williams 1962: 28-30. Type data: INDIA: Tamil Nadu, Marudamalai Hills, Coimbatore, on Euphorbia antiquorum, 03/10/1953, by T.S. Muthukrishnan. Holotype, female, Type depository: London: The Natural History Museum, England, UK; accepted valid name Illustr.
Greeniella cassida (Hall & Williams, 1962); Normark, et al. 2019: 61. change of combination

Families: 1 | Genera: 1

Countries: 1

Systematics: Greeniella cassida looks similar to Gymnaspis bullata but the pygidial lobes in the adult female are wider and the median lobes are much further apart in G. cassida than in Gymnaspis bullata. The second stages differ in that of Gymnaspis bullata has two additional macroducts submarginally, duplicating the first and second ducts on each side. These differences though small are consistent (Hall & Williams, 1962).
Structure: Female scale pupillarial, highly convex, anterior portion broadly rounded, posterior half narrowed and flattened apically, black, but reddish brown towards the posterior extremity, 1.0 mm long. Male scale white, subcircular, with conspicuous and large black exuviae, sometimes masked by a little white secretionary matter. Adult female membranous, widest across mesothorax, anterior to this flatly rounded, posteriorly abruptly narrowed towards pygidium which is flattened apically. Second stage female heavily sclerotized (Hall & Williams, 1962).
General Remarks: Best description and illustration by Hall & Williams (1962).