Tomarus
Tomarus is a genus of scarab beetles in the subfamily Dynastinae, the rhinoceros beetles. They are native to the Americas, where they are distributed from the central United States to Argentina, and a few species occur in the Caribbean.
The adult beetles are nocturnal and attracted to lights; the larvae generally remain in the soil, often feeding on plant roots.
In order to identify species, the parameres of the male must be pulled out of the abdomen and examined. This process should be done carefully, because the parameres are quite fragile, "almost parchment-like".
Species
The following species belong to the genus Tomarus:Tomarus adoceteus Ratcliffe & Cave, 2010 c gTomarus bidentulus cTomarus bituberculatus c gTomarus burmeisteri c gTomarus cicatricosus c gTomarus colombianus Lopez-Garcia & Gasca-Alvarez, 2014 gTomarus columbianus López-García & Gasca-Álvarez, 2014 c gTomarus compositus c gTomarus cuniculus i c g bTomarus discrepans Escalona & Joly, 2006 c gTomarus ebenus c g = type speciesTomarus effetus c gTomarus formosianus Grouvelle, 1913 gTomarus fossor c gTomarus gyas Erichson, 1848 c gTomarus laevicollis i c gTomarus maimon Erichson, 1847 c gTomarus maternus c gTomarus nasutus i c gTomarus neglectus i c g bTomarus peruvianus cTomarus pullus c gTomarus pumilus c gTomarus roigjunenti Neita & Ratcliffe, 2017 c gTomarus rosettae c gTomarus rostratus Dupuis, 2014 c gTomarus rubripes c gTomarus sallaei i c g bTomarus selanderi i c gTomarus similis c gTomarus spinipenis Neita & Ratcliffe, 2017 c gTomarus subtropicus i c g b Tomarus villosus c gData sources: i = ITIS, c = Catalogue of Life, g = GBIF, b = Bugguide.net
;Note - now placed in the restored genus Ligyrus:Tomarus gibbosus, the carrot beetle
- ''Tomarus relictus''