A revision of Megalocraerus Lewis, 1902 (Coleoptera, Histeridae: Exosternini)

By

Caterino, Michael S. (Michael Stephen), 1969-
Tishechkin, Alexey

Type

Article

Date of Publication

2016

Original Publication

ZooKeys

Volume

557

Pages

59-78

Subjects

Exosternini , Histeridae , Histerinae , Neotropical region , subcortical predator

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/zookeys.557.7087

 

Abstract

The formely monotypic Neotropical genus Megalocraerus Lewis is revised to include five species, known from southeastern Brazil to Costa Rica: M. rubricatus Lewis, M. mandibularis sp. n., M. chico sp. n., M. madrededios sp. n., and M. tiputini sp. n. We describe the species, map their distributions, and provide a key for their identification. Their subcylindrical body form and emarginate mesosternum have previously hindered placement to tribe, although their curent assignment to Exosternini now appears well supported by morphological evidence. Nothing is known of the natural history of the species.