Two New Genera of Baetidae (Ephemeroptera; Insecta) from Madagascar

Author: Gattolliat J-L.

Source: Aquatic Insects, Volume 24, Number 2, June 2002 , pp. 143-159(17)

Publisher: Taylor and Francis Ltd

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Abstract:

Two new genera of Baetidae (Ephemeroptera), Scutoptilum gen. n. and Echinopus gen. n., are described to accommodate three new species from Madagascar: Scutoptilum verrucosum sp. n., Echinopus giboni sp. n., Echinopus minutus sp. n.. They all share a unique apomorphy; they possess a subapico-transverse arc of long setae on the outer margin of femora. Scutoptilum presents important adaptations to fast flowing waters and mouthparts modified for scraping. Moreover, Scutoptilum shows an unusual general habitus with a prothorax broadly expanded laterally, forewing pads extremely developed and shape of the head subrectangular. Echinopus appears less derived and possesses more plesiomorphic features. Both genera are closely related to the Afrotropical genus Afroptilum and belong to the Centroptiloides complex.

Document Type: Research article

DOI: 10.1076/aqin.24.2.143.4903

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