1887

oa Annals of the Natal Museum - Afrocamilla stuckenbergi, a new African genus and species of Camillidae (Diptera), with comments on its behaviour and biology

Volume 33, Issue 1
  • ISSN : 0304-0798

 

Abstract

The systematics of the Camillidae is reviewed; this small family of acalyptrate Diptera now includes 4 genera and 15 named species in the Afrotropical and Palaearctic Regions. The Afrotropical fauna (currently three named species) is characterised. Camilla africana Bezzi, 1908 is transferred from the Camillidae to the Drosophilidae. A key to the four world genera of Camillidae is presented. Afrocamilla gen. n. is descriptionbed to accommodate Camilla armata Hackman, 1960 and A. stuckenbergi sp. n., both from South Africa. A. stuckenbergi is descriptionbed as new. External and postabdominal characters of both sexes are discussed, particularly the modification of abdominal terga 2 and 3, development of elongate marginal bristles on tergum 2 and the form of the ventral receptacle in the female. Behavioural observations on a population of Afrocamilla stuckenbergi at Jackson's Falls in the Assagay/Shongweni area of Natal, have shown that adults there were restricted to faecal pellets in a latrine of the rock hyrax Procavia capensis (Pallas). Adults were laboratory reared from a sample of this dung. Copulation is descriptionbed, as are characteristic abdominal and wing movement. The upward flexure of the elongate bristles on tergum 2 beneath the surface of the folded wings, produces a striking up-and-down wing movement which probably has a signalling function.

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/content/annals/33/1/AJA03040798_294
1992-10-01
2020-07-10

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