Revision of the South American genus Paraegidium (Coleoptera: Scarabaeidae: Orphninae)


Frolov A. V., Akhmetova L. A., Vaz-de-Mello F. Z. 2017. Revision of the South American genus Paraegidium (Coleoptera: Scarabaeidae: Orphninae). Journal of Natural History, 51, 995–1014.

The Neotropical Orphninae genus Paraegidium Vulcano et al. is revised. Five new species are described: Paraegidium monneorum sp. nov., Paraegidium barretoi sp. nov., Paraegidium pokornyi sp. nov., Paraegidium howdeni sp. nov., and Paraegidium oliveirai sp. nov. The genus is subendemic to Brazil, and its species are distributed from Guiana Shield in the north to the Peruvian Yungas in the west and to Serra do Mar escarpments in the southeast. Keys, descriptions, illustrations of habitus and male genitalia, and distributional record map are given.

Review of the Madagascan Orphninae with revision of the genus Triodontus Westwood


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.

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.Keys, descriptions, illustrations of habitus and male genitalia, and distributional records maps are given for all species.

Genus Renorphnus (Scarabaeidae, Orphninae)

Orphninae, Renorphnus clementi (Petrovitz, 1971)

Body small sized (length 7.0 to 9.5 mm), with uniform brown coloration. Mandibles subsymmetrical. Clypeus of both sexes similar, not tuberculate, with more or less raised anterior margin in the middle. Pronotum wider than long, smooth, similar in both sexes, with shallow, sometimes almost indistinct depression anteriorly and 2 small tubercles aside the depression. Propleurae smoothly convex, without carinae separating anterolateral areas from basal area. Scutellum triangular, narrowly rounded apically, about 1/12 length of elytra. Elytra convex, with humeral umbones, with only first stria distinct. Wings fully developed. Metepisternon triangular, tapering caudally, with slightly widened anterodorsal angle slightly overlapping epypleuron. ...

A new genus of Orphninae from Madagascar

Figs 1-5. Renorphnus clementi. 1, 2 – general view (1 – male, 2 – female); 3 – parameres in dorsal view; 4 – aedeagus in lateral view; 5 – internal sac of aedeagus.

Frolov, A.V., Montreuil, O. 2009. A new genus of Orphninae (Coleoptera, Scarabaeidae) from Madagascar. Zoosystematica Rossica, 18, 65-69. PDF (2.69 MB)

Abstract — A new genus, Renorphnus gen. n, is established for Madagascar species Orphnus clementi Petrovitz. The new genus differs in distinctive shape of anterior tibiae of male, shape of clypeus, pronotum with 2 more or less prominent tubercles in both sexes, and in widened and pectinate setae on costal margin of wings. O. clementi is redescribed. Diagnostic key to Madagascar Orphninae genera is given.