A non-paraphyletic classification of the afrotropical genus Acanthiops Waltz & McCafferty (Ephemeroptera: Baetidae)

Lugo-Ortiz, C.R. and Barber-James, Helen Margaret and McCafferty, W.P. and de Moor, F.C. (2001) A non-paraphyletic classification of the afrotropical genus Acanthiops Waltz & McCafferty (Ephemeroptera: Baetidae). African Entomology, 9 (1). pp. 1-15. ISSN 1021-3589

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Abstract

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).

Item Type:Article
Uncontrolled Keywords:Ephemeroptera; Baetidae; Acanthiops; Afroptiloides; new synonym, Acanthiops faro; Acanthiops io, new species; Acanthiops cooperi; Acanthiops elgonensis; Acanthiops erepens; Acanthiops griffithsi; Acanthiops marlieri; Acanthiops tsitsa; Acanthiops variegatus; Acanthiops varius; Acanthiops zomba; Baetis cataractae; Platycloeon
Subjects:Y Unknown > Subjects to be assigned
Divisions:Research Institutes and Units > Albany Museum
ID Code:1149
Deposited By:INVALID USER
Deposited On:02 Oct 2008
Last Modified:01 Aug 2012 07:25
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