Issue |
Ann. Limnol. - Int. J. Lim.
Volume 33, Number 3, September 1997
|
|
---|---|---|
Page(s) | 191 - 195 | |
DOI | https://doi.org/10.1051/limn/1997018 | |
Published online | 15 March 2009 |
Edmulmeatus grandis : an extraordinary new genus and species of Baetidae (Insecta : Ephemeroptera) from Madagascar
Edmulmeatus grandis : extraordinaires nouveaux genre et espèce de Baetidae (Insecta : Ephemeroptera) de Madagascar
Department of Entomology, Purdue University, West Lafayette,
IN 47907, USA
Edmulmeatus grandis, n. gen. and sp. (Ephemeroptera : Baetidae) is described from larvae collected from eastern Madagascar. The genus is distinguished primarily by having a relatively very large head capsule, large and robust mandibles with specialized armature, and gills on abdominal segments 2-7 only. The relatively massive mandibles suggest that larvae have unusual feeding habits compared to other baetids, being probably a macrovore-herbivore adapted for cutting and crushing plant food items. Edmulmeatus is possibly related to other Afrotropical genera having two rows of denticles on the tarsal claws.
Résumé
Edmulmeatus grandis, n. gen. et n. sp. (Ephemeroptera : Baetidae) est décrit à partir de larves récoltées à l'Est de Madagascar. Le genre se distingue essentiellement par sa capsule céphalique relativement très développée, ses grandes mandibules robustes dotées d'une armature spécialisée, et ses branchies, implantées sur les segments abdominaux 2 à 7 seulement. Les mandibules relativement massives suggèrent un régime trophique larvaire inhabituel, comparativement aux autres Baetidae, probablement de type macrovore-herbivore, adapté à sectionner et à broyer les éléments végétaux. Il est possible qu'Edmulmeatus soit apparenté aux autres genres Afrotropicaux et Baetidae possédant deux rangées de denticules aux griffes tarsales.
Key words: ephemeroptera / baetidae / edmulmeatus grandis / new genus / new species / Madagascar
Mots clés : ephemeroptera / baetidae / edmulmeatus grandis / genre nouveau / espèce nouvelle / Madagascar
© Université Paul Sabatier, 1997
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