. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Text-fig. 267.—Side and ventral (dorsal) views and separate parts of hypopygium of o Geron orthoperus n. sp. having the wings more vitreous hyaline, no distinct milky whitish tint being so apparent, and with their veins also more uniformly brownish and even more distinctly yellowish towards or at base. From nigerrimus it also differs in having the knobs of halteres pre- dominantly ivory whitish above and below. The pubescence on occiput, front part and sides of thorax abo\~e, on abdomen and on coxae
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Text-fig. 267.—Side and ventral (dorsal) views and separate parts of hypopygium of o Geron orthoperus n. sp. having the wings more vitreous hyaline, no distinct milky whitish tint being so apparent, and with their veins also more uniformly brownish and even more distinctly yellowish towards or at base. From nigerrimus it also differs in having the knobs of halteres pre- dominantly ivory whitish above and below. The pubescence on occiput, front part and sides of thorax abo\~e, on abdomen and on coxae is also relatively longer and denser than in S3 of nigerrimus and anceps and that on thorax in front discally above with a faint straw-coloured yellowish tint in certain lights. The hypopygium (text-fig. 267) resembles that of anceps in many respects, but the apical lobes of basal part are straight and there is also on each side ventrally at base of each apical lobe a long and prominent spine, much longer than that of anceps: aedeagal complex (figure on extreme right) much like that of anceps and the apically directed spines and processes very similar: the dorsal guide to aedeagal complex (shown on extreme left) also similar: the basal strut is larger. As in niger- rimus and anceps, it will be seen that the aedeagus has stylet-like processes ventral to it and not dorsal as in other species of 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
Size: 1498px × 1668px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
