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Review and a New Species of the African Genus Acanthiops (Ephemeroptera : Baetidae)

Published online by Cambridge University Press:  01 February 2009

H. M. Barber-James  and
W. P. McCafferty
H. M. Barber-James
Affiliation:
Albany Museum, Somerset Street, Grahamstown 6140, South Africa
W. P. McCafferty
Affiliation:
Department of Entomology, Purdue University, West Lafayette, IN 47907, USA
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Abstract

The African genus Acanthiops Waltz and McCafferty (Ephemeroptera : Baetidae) is reviewed, redescribed, and figured. The genus is a monophyletic group, easily identified in the larval stage by its distinctive labium, dorsal abdominal armature, claw armature, and two-tailed condition. A previous synonymy of Afroptilum (subgenus Afroptiloides) Gillies with Acanthiops is corroborated. Nominal species included in Acanthiops are A. marlieri (Demoulin) from Zaire, A. tsitsa n. sp. from South Africa, A. variegatus (Gillies) n. comb, from Tanzania, and A. varius (Crass) from South Africa. There are other undescribed species more widespread in sub-Saharan Africa. Species vary considerably and express relative apotypy in development of dorsal armature. Acanthiops tsitsa is described from larvae taken in the North East Cape; it is related to A. varius, but differs in dorsal armature and mouthpart characterization.

Keywords

EphemeropteraBaetidaeAcanthiopsAfricaAcanthiops tsitsaEphemeropteraBaetidaeAcanthiopsAfricaAcanthiops tsitsa
Type
Research Article
Information
Annales de Limnologie - International Journal of Limnology , Volume 33 , Issue 2 , June 1997 , pp. 85 - 92
Copyright
© Université Paul Sabatier, 1997

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