. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Text-fig. 115. Side view of hypopygium, and apical and dorsal views of beaked apical joint, of o* Petrorossia vinula Bezz. Petrorossia masieneensis n. sp. This species is the eastern subtropical representative of vinula and superficially resembles it very much. It differs from vinula, however, in having the wings on the whole more uniformly and diffusely coffee-brownish, less dark chocolate- brownish, the less-infused areas in the discoidal and posterior cells distinctly less clear and less defined,
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Text-fig. 115. Side view of hypopygium, and apical and dorsal views of beaked apical joint, of o* Petrorossia vinula Bezz. Petrorossia masieneensis n. sp. This species is the eastern subtropical representative of vinula and superficially resembles it very much. It differs from vinula, however, in having the wings on the whole more uniformly and diffusely coffee-brownish, less dark chocolate- brownish, the less-infused areas in the discoidal and posterior cells distinctly less clear and less defined, more greyish than whitish; the axillary lobe less con- trastingly clear in basal three-quarters and less infuscated apically; the anal cell not much darker and not so conspicuously dark as in vinula; the apical parts of submarginal cells (text-fig. 114, right) more exten- sively or entirely clear, there being no broad infusion along vein separating them as in vinula. Some distinct very dark or black bristly hairs are present across hind border of scutellum and across hind margin of tergite 1. Hypopygium of $ (text-fig. 116) differs from that of'vinula in having the beaked apical joints relatively longer, their apical half more slender, their outer rim-like edge less raised or prominent and in having a slightly broader, less bat-shaped basal strut. From a £ and ? in the South African Museum. Length of body: about 8-9^ mm. Text-fig. 116. Side view _ . r . . of hypopygium and Length of wing: about 10-1 of mm. rfb-W^£3j*Srf Localitr- Portuguese East Africa: Masiene (Law- $ Petrorossia masieneensis rence, Dec. 1923), n. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original South African Museum. Cape Town : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
