A new genus from Madagascar with strongly enlarged labium (Ephemeroptera, Baetidae)
Open Access
- 12 November 2021
- journal article
- research article
- Published by Pensoft Publishers in African Invertebrates
- Vol. 62 (2), 465-484
- https://doi.org/10.3897/afrinvertebr.62.73911
Abstract
A new genus of Baetidae, Megalabiops gen. nov., and a new species, M. madagasikara sp. nov., are described from Madagascar based on nymphs. The new genus is characterized by having a strongly enlarged mentum; pedicelli with many long, stout, pointed setae; a brush of dense, short setae between prostheca and mola of both mandibles; an apically pointed maxillary palp with a stout seta at the tip; and a labium with many long, simple setae ventrally on glossae. The patellotibial suture is absent on the fore tibia and present on middle and hind tibiae. The claw is strongly elongated with two rows of denticles. The imago remains unknown and the relationships with other African genera of Baetidae are tentative. Despite being easily identifiable, only two nymphs were found in two highly sampled localities in Madagascar.Keywords
This publication has 32 references indexed in Scilit:
- A new genus and species of Baetidae (Insecta: Ephemeroptera) from BrazilAnnales de Limnologie - International Journal of Limnology, 2013
- Toward a DNA Taxonomy of Alpine Rhithrogena (Ephemeroptera: Heptageniidae) Using a Mixed Yule-Coalescent Analysis of Mitochondrial and Nuclear DNAPLOS ONE, 2011
- New species and generic delimitation of the Afrotropical genera Bugilliesia Lugo-Ortiz & McCafferty, 1996; Cheleocloeon Wuillot & Gillies, 1993 and Delouardus Lugo-Ortiz & McCafferty, 1999 (Ephemeroptera: Baetidae)Aquatic Insects, 2009
- Phylogeny of Ephemeroptera (mayflies) based on molecular evidenceMolecular Phylogenetics and Evolution, 2005
- Trans-oceanic and endemic origins of the small minnow mayflies (Ephemeroptera, Baetidae) of MadagascarProceedings. Biological sciences, 2005
- Two New Genera of Baetidae (Ephemeroptera; Insecta) from MadagascarAquatic Insects, 2002
- Six new species ofLabiobaetisNovikova & Kluge (Ephemeroptera: Baetidae) from Madagascar with comments on the validity of the genusAnnales de Limnologie - International Journal of Limnology, 2001
- Two new species ofHerbrossus(Ephemeroptera : Baetidae) from Madagascar with the first generic description of the adultsAnnales de Limnologie - International Journal of Limnology, 1998
- Five new genera of Baetidae (Insecta : Ephemeroptera) from South AmericaAnnales de Limnologie - International Journal of Limnology, 1998
- A revision of the African Species ofCentroptilumEaton (Baetidae, Ephemeroptera)Aquatic Insects, 1990