. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. REVISION OF THE BOMBYLIIDAE (DIPTERA) OF SOUTHERN AFRICA 573 well-developed hook or spine. Last sternite of $ shaped as shown in text-fig. 192, left. In the British, Transvaal, Durban and South African Museums, the Division of Veterinary Services at Onderstepoort, the Commonwealth Institute and the Agricultural Department of Southern Rhodesia. Length of body: about 5-10J mm. Length of wing: about 5-11 mm. Locality: Over most of Southern Africa, including South-West Africa, the Kalahari, Bechuanaland,
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. REVISION OF THE BOMBYLIIDAE (DIPTERA) OF SOUTHERN AFRICA 573 well-developed hook or spine. Last sternite of $ shaped as shown in text-fig. 192, left. In the British, Transvaal, Durban and South African Museums, the Division of Veterinary Services at Onderstepoort, the Commonwealth Institute and the Agricultural Department of Southern Rhodesia. Length of body: about 5-10J mm. Length of wing: about 5-11 mm. Locality: Over most of Southern Africa, including South-West Africa, the Kalahari, Bechuanaland, Northern and Southern Rhodesia, Zululand and Portuguese East Africa from October to Text-fig. 192. Left: Side view of last sternite of 6* Thyridanthrax abruptus (Lw.). Right: Side view of hypopygium and ventral view of aedeagal process of 6* of same species. This species is one of the commonest. Bombyliids in Southern Africa, occur- ring in all types of environment except in the Western Cape Province. In the Karoo and other semi-arid parts it invariably settles on the ground between bushes and during the flowering season it visits the flowers of various succulents and composites. In tsetse-infested parts of Rhodesia, Portuguese East Africa and Zululand it is the important Bombyliid parasite in the puparia of Glossina morsitans (the carrier of human and animal Trypanosomes) and also in puparia of G. pallidipes and G. brevipalpis. It is not known what other species of Diptera this Bombyliid parasitizes in the tsetse-free areas of its distribution. Like other widely distributed species of Bombyliids it shows local, regional and in this case probably also physiological, variation. The form (probably the more typical form) parasitizing tsetse flies and also that occurring in the more humid eastern and south-eastern coastal regions differ from the more atypical forms occurring in the drier parts in having the infuscation in marginal cell in $ extending farther apically to op
Size: 1883px × 1327px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
