. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. A Revision of the Bombyliidae (Diptera) of Southern Africa. 471 Potgieter has kindly placed some preserved larvae and pupae at my disposal, which, together with some other pupae from the Agri- cultural Department at Pretoria, I am describing and figuring below. Larva of S. xerojphilus n. sp. (text-fig. 127 and also fig. 6, c, Potgieter, loc. cit.). These larvae are dis- tinctly not the triungulin- stages, which have been observed to hatch from Bombyliid-eggs by authors such as Verhoefl, Riley, Shelfo
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. A Revision of the Bombyliidae (Diptera) of Southern Africa. 471 Potgieter has kindly placed some preserved larvae and pupae at my disposal, which, together with some other pupae from the Agri- cultural Department at Pretoria, I am describing and figuring below. Larva of S. xerojphilus n. sp. (text-fig. 127 and also fig. 6, c, Potgieter, loc. cit.). These larvae are dis- tinctly not the triungulin- stages, which have been observed to hatch from Bombyliid-eggs by authors such as Verhoefl, Riley, Shelford, Nielsen and Portchinsky. They are the transformed eruciform stages which are found feeding inside the egg- pods and which, according to the observations of Potgieter, are also found free in the soil near de- stroyed egg-packets. Dry and spirit specimens are dull creamy white to very pale yellowish in colour, and dried specimens often show a brownish oleaceous colour across the junctions between segments and the chitinous cephalic capsule is pale brownish to dark brown. Body with the dorsum more convexly arched, with the broadest part more or less between meso and metathoracic segments and first abdominal segment, more often across the first abdominal segment; 13 distinct segments present, including the head and terminal medial lobe of telson-like segment at end; no pseudopods or leg- prominences present on the thoracic segments, but these 3 sternites slightly more tumid and probably in life much more so; abdominal tergites and sternites without any visible hairs or bristles, the extreme sides between tergites and sternites, however, fold-like and tumid and also more or less divided into slightly tumid promin-. Text-fig. 127.—Side view and front view of head of larva of Systoechus xerophilus 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 ma
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
