Taxonomic review of Cratocerus Dejean, 1829 (Coleoptera, Carabidae) with the description of six new species.

Traci Grzymala,Kipling Will

doi:10.3897/zookeys.416.6455

Abstract

A diagnosis of the South and Central American genus Cratocerus Dejean (Coleoptera: Carabidae) and a key to all species is provided. Eight species are recognized including six species that are newly described: Cratocerus sinesetosus sp. n. from French Guiana and Peru; Cratocerus multisetosus sp. n. from Costa Rica and Panama; Cratocerus tanyae sp. n. from Costa Rica, Guatemala, and Mexico; Cratocerus indupalmensis sp. n. a species widely distributed throughout Central and South America; Cratocerus kavanaughi sp. n. from French Guiana and Peru; and Cratocerus culpepperi sp. n. from Peru. A lectotype for Cratocerus sulcatus Chaudoir is designated. Habitus images are provided along with illustrations and images of male genitalia, female genitalia, and diagnostic morphological characters.

Highlights

The genus Cratocerus (Coleoptera: Carabidae) was originally described by Dejean (1829) based on two specimens collected from Brazil
Measurements listed include apparent body length (ABL), which was measured from the apex of the labrum to the apex of the elytra; total width (TW), which was measured across the widest point of the elytra; head width (HW) measured across the supraorbital ridges; head length (HL) measured from apex of labrum to base of the head; pronotal width (PW) taken across the widest point of the pronotum, usually anterad to center; pronotal length (PL), measured at pronotal midline from apex to base; and elytral length (EL) measured from humeri to elytral apex
No detailed study of the characteristics of Cratocerus relative to their possible placement in a tribal scheme has been done. They are clearly placed in Harpalinae based on the shared harpalidian abdominal configuration (Liebherr and Will 1998, Deuve 1993)

Summary

Introduction

The genus Cratocerus (Coleoptera: Carabidae) was originally described by Dejean (1829) based on two specimens collected from Brazil. Dejean described these as Cratocerus monilicornis and placed the genus within his first division of the Carabidae characterized by moniliform antennae. This first division included two additional genera, Somoplatus Dejean and Daptus Fischer von Waldheim, Cratocerus was separated from these based.

Methods

Conclusion