oa Annals of the Natal Museum - The Athericidae, a new family in the lower Brachycera (Diptera)

Volume 21, Issue 3
  • ISSN : 0304-0798



Structural features of the male and female genitalia, abdominal base, thorax, wing venation and antennae, as well as larval morphology, indicate that the following genera formerly included in the Rhagioni­dae, viz. Atherix Meigen, Atrichops Verrall, Suragina Walker, Pachybates Bezzi, Trichacantha Stuckenberg, Dasyomma Macquart and Xeritha Stuckenberg, form a monophyletic group whose sister-group is not the genus Rhagio Fabr. and its relatives but the Tabanidae. The new family Athericidae, type-genus Atherix, is erected for these genera. The relationship between tabanids and athericids is apparent in oviposition and haematophagous habits common to both families. A new subfamily, Dasyomminae, is erected for Dasyomma because the genus has many morphological distinctions. The sister-group of the Rhagionidae is considered to be the Coenomyiidae, and both Rhagionidae and Pelecorhynchidae are rejected as members of the Tabanoidea sensu Hennig.

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