Cladistic analysis reveals polyphyly of Tomarus (Coleoptera: Scarabaeidae: Dynastinae): new classification and taxonomic revision.

The phylogeny of Tomarus Erichson, 1847 (Coleoptera: Scarabaeidae: Dynastinae: Pentodontini) was explored by parsimony using morphological characters to approach its taxonomic and nomenclature problems. The genus was not supported as a monophyletic group, and the recovered lineages did not match at all any of the previously known classifications. Three different lineages and six monophyletic groups were recovered, which could be treated as independent genera.

Taxonomic synopsis of the genus Tomarus Erichson, 1847 (Coleoptera: Scarabaeidae: Dynastinae) in Peru.

We provided a taxonomic synopsis of the species of the genus Tomarus Erichson, 1847 (Coleoptera: Scarabaeidae: Dynastinae: Pentodontini) of Peru. Diagnosis, illustrations, photographs, and maps are presented for each species and a taxonomic key to known species in the country is also included.

Description and notes on natural history of a new species of Parosus Sharp, 1887 (Coleoptera, Staphylinidae, Oxytelinae) living in floral bracts of Columnea medicinalis L. (Gesneriaceae).

A new species of the recently revised genus Parosus is described, P. amayae López-García Marín-Gómez sp. nov.

An annotated checklist of the New World pentodontine scarab beetles (Coleoptera: Scarabaeidae: Dynastinae: Pentodontini).

An updated and annotated checklist of the Pentodontini (Coleoptera: Scarabaeidae: Dynastinae) of the New World is presented. The tribe is composed of 32 genera and 151 species, including the introduced species Heteronychus arator (Fabricius).

The scarab beetle tribe Pentodontini (Coleoptera: Scarabaeidae: Dynastinae) of Colombia: taxonomy, natural history, and distribution.

Pentodontini is the most diverse tribe of Dynastinae (Coleoptera: Scarabaeidae), and most of the genera are restricted to a single biogeographic region. In this work, the taxonomic composition of the Pentodontini in Colombia was determined, and genera and species were diagnosed based on external morphology and male genitalia. Records of 1,580 specimens from 31 departments and 398 localities in Colombia were obtained from 24 species in the genera Bothynus Hope, Denhezia Dechambre, Euetheola Bates, Hylobothynus Ohaus, Oxyligyrus Arrow, Parapucaya Prell, Pucaya Ohaus, and Tomarus Erichson.

A new species of Tomarus Erichson, 1847 (Coleoptera: Scarabaeidae: Dynastinae: Pentodontini), with a key to the species in Colombia.

A new Tomarus Erichson, 1847 (Coleoptera: Scarabaeidae: Dynastinae: Pentodontini) species is described from western Colombia. The new species is compared with Tomarus laevicollis (Bates, 1888) from Central America. An identification key is also provided to the species occurring in the country.

A new species of the genus Linoderus Sharp, 1885 (Coleoptera, Staphylinidae, Philonthina) from the Colombian Andes.

The monotypic genus Linoderus Sharp, 1885 was described based on a species from Panama and since the original description nearly nothing has been added to its taxonomical knowledge. The aim of the present paper is to describe a new species of the genus from Colombia and to report the genus for the first time from South America, adding some biological notes of the species.