Synopsis of the Oryctini (Coleoptera: Scarabaeidae: Dynastinae) from the Brazilian Amazon Author Alvarez, Héctor Jaime Gasca Instituto Nacional de Pesquisas da Amazônia-INPA Coordenação de Pesquisas em Entomologia Av. André Araújo, 2936 - Petrópolis CEP 69011 - 970 Manaus, Amazonas, Brazil Author da, Claudio Ruy Vasconcelos Instituto Nacional de Pesquisas da Coordenação de Pesquisas em Av. André Araújo, 2936 - Petrópolis CEP 69011 - 970 Manaus, Amazonas Author Fonseca Amazônia-INPA Entomologia Petrópolis, Brazil Author Ratcliffe, Brett C. University of Nebraska State Museum W 436 Nebraska Hall Lincoln, NE 68588 - 0514, USA text Insecta Mundi 2008 2008-12-05 2008 61 1 62 journal article 10.5281/zenodo.5352440 1942-1354 5352440 Strategus Kirby 1828 Strategus Kirby 1828: 349 Strategodes Casey 1915: 245 (synonym, described as subgenus) Anastrategus Casey 1915: 231 (synonym) Strategopsis Chapin 1932: 302 (synonym, described as subgenus) Type species: Scarabaeus aloeus Linnaeus, 1758 . Species of Strategus may be distinguished by mandibles exposed with apex bidentate and with a prominent basal lobe; pronotum foveate and at least tuberculate subapicaly, protibia quadridentate, and apex of metatibia with three teeth. Adults are nocturnal and attracted to lights. The larvae live in rotting tree trunks and possibly in rich organic debris in the soil. Adults have been observed feeding on the roots of several species of palms ( Ratcliffe 2003 ). The genus contains 37 species ( Morón and Nogueira 2008 ) distributed from southern United States , through Central America, to southern Argentina , including the Greater and Lesser Antilles. There is one possible fossil species. Five species are registered in Brazil , of which four occurs in Brazilian Amazonia.