Frolov A. V., Akhmetova L. A., Vaz-de-Mello F. Z. 2017. Revision of the Neotropical scarab beetle genus Aegidiellus Paulian (Coleoptera: Scarabaeidae: Orphninae) with description of two new species. Journal of Natural History. 51: 1767–1779.
The Neotropical Orphninae genus Aegidiellus Paulian is revised. Two new species are described: Aegidiellus zezaoi sp. nov. and Aegidiellus dentipenis sp. nov. The genus occurs in eastern Brazil, mostly in the Atlantic Forest ecoregion. Key to species, descriptions, illustrations of habitus and male genitalia, and distribution maps are given.
Body mid-sized (length about 10 mm), brown to dark-brown. Mandibles subsymmetrical. Clypeus without tubercles, horns or ridges. Pronotum with deep excavation in the middle, two horns bordering the excavation near anterior margin, and with a tubercle medially on the anterior margin in most males; females with pronotum impressed anteriorly on disc and with a tubercle medially on the anterior margin. Propleurae with carinae separating anterolateral areas from basal area...
Body mid-sized (length about 10 mm), brown to dark-brown. Mandibles subsymmetrical. Clypeus without tubercles, horns or ridges. Pronotum with deep excavation in the middle, two horns bordering the excavation near anterior margin, and with a tubercle medially on the anterior margin in most males; females with pronotum impressed anteriorly on disc and with a tubercle medially on the anterior margin. Propleurae with carinae separating anterolateral areas from basal area...