Abstract
Two new species of the orphnine scarab beetle genus Madecorphnus Paulian, 1992 are described: M. heidiae Frolov & Akhmetova, new species, and M. ranomafanensis Frolov & Akhmetova, new species, from the Ranomafana National Park, Fianarantsoa Province, Eastern Madagascar. The new species can be easily distinguished by the endophallic armature consisting of more than 10 small and similar, conical tubercles in the former species and 3 long sclerites and 2 smaller indistinctly separated clusters of robust spinules in the later. Exact locality data are provided for the first time for two Triodontus Westwood, 1845, species: T. hildebrandtii (Fairmaire, 1883) was found in the northern Madagascar and is probably endemic to the Amber Mountain Range, T. fairmairei Frolov, Montreuil & Akhmetova, 2016, was also found in the northern Madagascar: Antsiranana Province, Djangoa. The updated key to the Madecorphnus species is given.
References
Frolov, A.V. (2010a) A new species of scarab beetle, Madecorphnus cuccodoroi (Coleoptera: Scarabaeidae: Orphninae), from northern Madagascar. Zootaxa, 2531 (1), 64–68.
https://doi.org/10.11646/zootaxa.2531.1.7
Frolov, A.V. (2010b) Revision of the Madagascan genus Madecorphnus Paulian (Coleoptera, Scarabaeidae, Orphninae). Journal of Natural History, 44, 1095–1111.
https://doi.org/10.1080/00222931003632765
Frolov, A.V. (2012) Three new species of scarab beetle genus Madecorphnus Paulian, 1992 (Coleoptera: Scarabaeidae: Orphninae) from Madagascar. Proceedings of the Zoological Institute RAS, 316, 159–165.
Frolov, A.V. (2013) Little known Orphninae (Coleoptera, Scarabaeidae) collected by the Madagascan expeditions of the California Academy of Sciences. Biodiversity Data Journal, 1, e1016.
https://doi.org/10.3897/BDJ.1.e1016
Frolov, A.V. (2014) New species of the Madagascan scarab beetle genus Madecorphnus Paulian, 1992 (Coleoptera: Scarabaeidae: Orphninae). Proceedings of the Zoological Institute RAS, 318, 34–39.
Frolov, A.V., Akhmetova, L.A. & Vaz-de-Mello, F.Z. (2017a) Revision of the mainland species of the Neotropical genus Aegidium Westwood (Coleoptera: Scarabaeidae: Orphninae). Journal of Natural History, 51, 1035–1090.
https://doi.org/10.1080/00222933.2017.1319519
Frolov, A.V., Montreuil, O. & Akhmetova, L.A. (2016) Review of the Madagascan Orphninae (Coleoptera: Scarabaeidae) with a revision of the genus Triodontus Westwood. Zootaxa, 4207 (1), 1–93.
https://doi.org/10.11646/zootaxa.4207.1.1
Frolov, A.V., Smith, A.B.T. & Akhmetova, L.A. (2017b) A new species of the genus Madecorphnus (Coleoptera: Scarabaeidae: Orphninae) from Madagascar. Zootaxa, 4341 (2), 272–274.
https://doi.org/10.11646/zootaxa.4341.2.7
Paulian, R. (1977) Les Orphnidae de Madagascar. Bulletin du Muséum National d’Histoire Naturelle, 3e Série, Zoologie, 411, 1199–1223.
Westwood, J.O. (1845) On the lamellicorn beetles which possess exserted mandibles and labrum, and 10-jointed antennae. Transactions of the Entomological Society of London, 4, 155–180.
https://doi.org/10.1111/j.1365-2311.1846.tb01350.x