n African Entomology - A non-paraphyletic classification of the Afrotropical genus Acanthiops Waltz & McCafferty (Ephemeroptera : Baetidae)
|Article Title||A non-paraphyletic classification of the Afrotropical genus Acanthiops Waltz & McCafferty (Ephemeroptera : Baetidae)|
|© Publisher:||Entomological Society of South Africa (ESSA)|
|Author||C.R. Lugo-Ortiz, H.M. Barber-James, W.P. McCafferty and F.C. De Moor|
|Publication Date||Mar 2001|
|Pages||1 - 15|
|Keyword(s)||Acanthiops, Acanthiops faro, Acanthiops io, Afroptiloides, Baetidae, Ephemeroptera, New species and New synonym|
Acanthiops Waltz & McCafferty (Ephemeroptera : Baetidae) is shown to be a monophyletic grouping defined by an anteromedially emarginate and laterally expanded and flattened pronotum in the larva. Attempts to restrict the concept of Acanthiops to Ac. marlieri (Demoulin) and re-erect Afroptiloides Gillies, syn. n., for Ac. elgonensis Lugo-Ortiz & McCafferty, Ac. griffithsi Lugo-Ortiz & McCafferty, Ac. tsitsa Barber-James & McCafferty, Ac. variegatus (Gillies), Ac. varius (Crass) and Ac. zomba Lugo-Ortiz & McCafferty, are shown to be based on inconsistent and inadequate morphological features that result in a paraphyletic taxonomy. The unofficial separate treatment of Ac. cooperi (Gillies & Wuillot) and Ac. erepens (Gillies) under Platycloeon Gillies & Wuillot is also shown to be paraphyletic. Acanthiops faro Barber-James & McCafferty, sp. n., is described from larvae from Guinea, and is distinguished by the combination of a papillate projection on labial palp segment 2, small tubercles on terga 1?8 and abdominal colour pattern. Acanthiops io Lugo-Ortiz & McCafferty, sp. n., is described from larvae from the Democratic Republic of Congo, and is distinguished by the combination of a papillate projection on palp segment 2, elongate tubercles on terga 1?9 and abdominal colour pattern. The larva of Ac. erepens (Gillies) is redescribed to incorporate morphological features and variability previously not accounted for, and larvae originally assigned to Baetis cataractae Crass are shown to be equivalent to Ac. erepens. New locality data or emendations on locality data are provided for Ac. griffithsi, Ac. tsitsa Barber-James & McCafferty and Ac. varius (Crass).
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