oa African Entomology - Delouardus, a new Centroptiloides complex genus from Madagascar and its relationship with Cheleocloeon Wuillot & Gillies (Ephemeroptera: Baetidae)

Volume 7, Issue 1
  • ISSN : 1021-3589



Delouardus djabala gen. n. and sp. n. (Ephemeroptera: Baetidae) is based on a distinctive larva from Madagascar. The new genus belongs to the Centroptiloides complex of Afrotropical genera based on its possession of two rows of small, bluntly pointed denticles on the tarsal claws. Delouardus is distinguished from other genera of the Centroptiloides complex by having the second segment of the labial palps deeply falcate apically, weakly pectinate setae on the legs, and elongate and weakly hooked tarsal claws. Character analysis revealed that Delouardus and Cheleocloeon are sister taxa, indicating that Cheleocloeon should also be included in the Centroptiloides complex, despite its derived claw characters.

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