Genus Bembidion

Good descriptions of some species and additions / corrections to Lindroth's keys.

PDF here.

Online Here.

Detailed discussion of B. plagiatum's habitat preference and distribution. Prior to the publication of this note, the species was very poorly known and rare in collections.

Full title: "Systematics of the north american beetle subgenus Pseudoperyphus (Coleoptera: Carabidae: Bembidion) based upon morphological, chromosomal, and molecular data"

A masterful treatment of this immensely difficult group of Bembidion species, with desciption of four new species, detailed illustrations of external morphological characters as well as characters of the aedeagus, discussion on range and habitat preference, and notes on future problems that remain to be solved.

Full title: Phylogeny of the beetle supertribe Trechitae (Coleoptera: Carabidae): Unexpected clades, isolated lineages, and isolated lineages.

Abstract: Using data from two nuclear ribosomal genes and four nuclear protein-coding genes, we infer a well-resolved phylogeny of major lineages of the carabid beetle supertribe Trechitae, based upon a sampling of 259 species. Patrobini is the sister group of Trechitae, but the genus Lissopogonus appears to be outside of the Patrobini + Trechitae clade. We find that four enigmatic trechite genera from the Southern Hemisphere, Bembidarenas, Argentinatachoides, Andinodontis, and Tasmanitachoides, form a clade that is the sister group of Trechini; we describe this clade as a new tribe, Bembidarenini.