Anomiopus lauropalui ( Vulcano and Pereira, 1973 ) Valois & Vaz-de-Mello & Silva, 2020

Valois, Marcely C., Vaz-de-Mello, Fernando Z. & Silva, Fernando A. B., 2020, A taxonomic revision of the Neotropical genus Scatonomus Erichson, 1835 (Coleoptera: Scarabaeidae: Scarabaeinae), Journal of Natural History 54 (17 - 18), pp. 1081-1114 : 1110

Notes on Anomiopus lauropalui ( Vulcano and Pereira, 1973) comb. nov

In their original description, Vulcano and Pereira (1973) described (and illustrated) S. lauropalui with three teeth on the apical third of the protibial edge, with all teeth directed forward. The authors used these characteristics to assign the new species to the genus Scatonomus . However, after the examination of the holotype, we agree that the protibial teeth are positioned at the apical half of the external edge, and only the apical tooth is directed forward. This finding means that this species belongs to Anomiopus instead of Scatonomus . Therefore, we propose the new combination Anomiopus lauropalui ( Vulcano and Pereira 1973) . Within Anomiopus , this species is easily distinguished from any other by two tufts of setae on the interocular space ( Vulcano and Pereira 1973, Fig 2 ). Canhedo (2006) divided the species of Anomiopus into three species groups, and A. lauropalui best fits the diagnosis of the group smaragdinus, in which the species can be arranged based mainly on the absence of a tooth transversely inserted on the dorso-lateral surface of metatibiae, and by having at least the first metatarsomere emarginate at the apex ( Canhedo 2006).

Figures

Figure 2. Terminology used to describe the head parts. (a) Scatonomus canhedoae sp. nov.; (b) S. chalybaeus.