Frolov A. V., Montreuil O., Akhmetova L. A. 2016. Review of the Madagascan Orphninae (Coleoptera: Scarabaeidae) with revision of the genus Triodontus Westwood. Auckland: Magnolia Press. 2016, 93 p.

DOI: 10.11646/zootaxa.4207.1.1

ZooBank: urn:lsid:zoobank.org:pub:F2875582-31E2-496F-AEEF-1D657DD86C33

Review of the Madagascan Orphninae (Coleoptera: Scarabaeidae) with a revision of the genus Triodontus Westwood

Frolov, A.V.^1,2,3, Montreuil O.², L.A. Akhmetova^1,3

¹Laboratory of Insect Systematics, Zoological Institute, Russian Academy of Sciences, Universitetskaya nab., 1, St.-Petersburg, 199034 Russia. Email: frolov@scarabaeoidea.com

²MECADEV, UMR 7179 MNHN/CNRS, Muséum national d'Histoire naturelle, Entomologie, CP 50, 45 rue Buffon, 75231 Paris cedex 05, France.

³Universidade Federal de Mato Grosso, Instituto de Biociências, Departamento de Biologia e Zoologia, Av. Fernando Corrêa da Costa, 2367, Boa Esperança, 78060-900 Cuiabá, MT, Brazil.

Abstract

The subfamily Orphninae (Coleoptera: Scarabaeidae) is reviewed from Madagascar. A total of four genera and 39 species were found, all being endemic to the island. The following five new species are described: Triodontus ankarafantsikae, Triodontus lemoulti, Triodontus viettei, Triodontus fairmairei, and Triodontus inexpectatus. Lectotypes are designated for Orphnus nitidulus Guérin-Méneville, 1844 and Orphnidius modestus Benderitter, 1914. The following new synonymies are proposed: Orphnus nigrita Brancsik, 1893 is synonym of Triodontus hova (Fairmaire, 1868); Triodontus occidentalis Paulian, 1977 and Orphnus obsoletus Brancsik, 1893 are synonyms of Triodontus nitidulus (Guérin-Méneville, 1844); Triodontus vadoni Paulian, 1977 and Triodontus perrotorum Paulian, 1977 are synonyms of Triodontus owas Westwood, 1852. Lectotypes are designated for the following names: Orphnus nitidulus Guérin-Méneville, 1844 and Orphnidius modestus Benderitter, 1914. Keys, descriptions, illustrations of habitus and male genitalia, and distributional records maps are given for all species.

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