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Subfamily Trechinae

 
 
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Phylogeny of the beetle supertribe Trechitae (Coleoptera: Carabidae): Unexpected clades, isolated lineages, and [...]
By D.R. Maddison, K. Kanda, O.F. Boyd, A. Faille, N. Porch, T.L. Erwin, and S. Roig-Junent
Molecular Phylogenetics and Evolution, 2019
Full title: Phylogeny of the beetle supertribe Trechitae (Coleoptera: Carabidae): Unexpected clades, isolated lineages, and morphological convergence.

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.

Rediscovery and distribution of Bembidion plagiatum Zimmerman (Coleoptera: Carabidae)
By Richard L. Hoffman
Brimleyana No.7 pp145-150, 1982
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.

Re-collected after 55 years: a new species of Bembidion (Coleoptera, Carabidae) from California
By Maddison D.R., Sproul J.S., Will K.
ZooKeys 1156: 87–106, 2023

First records fo the Palearctic species Trechus obtusus Erichson from the Appalachian region of the Southeastern United States
By Curt W. Harden, Michael S. Caterino, Thomas E. Malabad
The Coleopterists Bulletin 76(1): 61–69, 2022
Abstract:
The Palearctic species Trechus obtusus Erichson is reported for the first time from eastern North America. Recent collections in Virginia and North Carolina (new state records) indicate the establishment of the species in the Appalachian region. DNA was extracted from six individuals, and the COI barcoding region was sequenced. All but one of the COI barcode haplotypes were identical to those of T. obtusus collected in western North America. No matches were found with available Palearctic sequences. Individuals of T. obtusus were collected from caves and forest leaf litter, both habitats used by native trechine species.

Bembidion ambiguum (Coleoptera: Carabidae) is established in California
By D.R. Maddison, K. Will, S. Crews, J. LaBonte
Biodiversity Data Journal 6: e30763, 2018
First records of Bembidion ambiguum in North America presented, along with diagnostic photographs and modified key couplets.
Available online as of November 2020.

Systematics of the north american beetle subgenus Pseudoperyphus (Coleoptera: Carabidae: Bembidion) [...]
By David R. Maddison
Annals of Carnegie Museum, Vol 77 No 1 pp.147-193, 2008
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.

Species of Anillinus Casey (Coleoptera: Carabidae: Trechinae) described from Brazil and their Relation to North American [...]
By I.M. Sokolov & C.E. Carlton
The Coleopterists Bulletin 66(3):245-249, 2012
Full title: "Species of Anillinus Casey (Coleoptera: Carabdae: Trechinae) described from Brazil and their Relation to North American Representatives of the genus.

The authors conclude that two species of Anillinus described from Brazil by Zaballos and Mateu (1997) - A. minor and A. magnus - were based on mislabeled specimens that were actually collected in the state of Georgia, USA. They place A. minor in synonymy with A. steevesi Barr, and move A. magnus to the genus Serranillus. The aedeagi of three Serranillus species are figured (S. jeanelli, S. septentrionis, and S. magnus).

Species delimitation, classical taxonomy and genome skimming: a review of the ground beetle genus Lionepha (Col.: Carabidae)
By Maddison D.R., Sproul J.S.
Zool. J. Linn. Soc. XX: 1-46, 2020

 
 
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