Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Tribe Trechini


Pattern and process in speciation of trechine beetles in eastern North America
By T.C. Barr, Jr.
in Taxonomy, Phylogeny and Zoogeography of Beetles and Ants (G.E. Ball ed.), Junk Publishers, 1985
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Trechoblemus in North America, With a Key to North American Genera of Trechinae (Coleoptera: Carabidae)
By Thomas C. Barr Jr.
Psyche, Vol.78, Issue 3: 140-149, 1971

Geographically structured genetic diversity in the cave beetle Darlingtonea kentuckensis Valentine, 1952 (Coleoptera, ...
By Olivia F. Boyd, T. Keith Philips, Jarrett R. Johnson, Jedidiah J. Nixon
Subterranean Biology 34: 1-23, 2020
Full title: Geographically structured genetic diversity in the cave beetle Darlingtonea kentuckensis Valentine, 1952 (Coleoptera, Carabidae, Trechini, Trechina)
Full text (PDF)

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 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.

An annotated checklist of ground beetles (Carabidae) in the state of Sonora, Mexico with new species & collection localities
By Spheley, D & T.R. Van Devender
Dugesiana 29(1): 41-137, 2021
Complete title: An annotated checklist of ground beetles (Insecta: Coleoptera: Carabidae) occurring in the state of Sonora, Mexico with descriptions of new species and notes about some collection localities.

ABSTRACT
An annotated checklist of ground beetles in the family Carabidae from the state of Sonora in Mexico is presented with notes including number of specimens examined, municipios, habitat, vegetation, elevation, and collection dates. The checklist includes 388 taxa, of which 270 are described taxa (included are 19 subspecies and 1 hybrid) and 118 are unnamed morphospecies, in 92 genera representing 35 tribes. Dot maps display where specimens were collected. Three new species are described, with corrected keys and images: Calathus mcclevei, new species (type locality: Mexico, Sonora, Municipality of Yécora, 10 km south of Yécora, ca. 28.278° N 108.926° W); Calathus tigrinus, new species (type locality: Mexico, Sonora, Municipality of Nacozari de García, Rancho El Tigre, 28.3 km (by air) WNW Bavispe, Sierra El Tigre, 30.58988° N 109.20811° W); and Amblygnathus balli, new species (type locality: Mexico, Sonora, Municipality of Fronteras, Rancho Capulín, 23.5 km (by air) WSW Fronteras, Sierra Buenos Aires, 30.76167° N 109.82361° W).

Western Hemisphere Zuphiini: descriptions of Coarazuphium whiteheadi (new species), Zuphioides (new genus), and classification
By Ball, G.E. and D. Shpeley
ZooKeys 315: 17-54 , 2013
Full Title: Western Hemisphere Zuphiini: descriptions of Coarazuphium whiteheadi, new species, and Zuphioides, new genus, and classification of the genera (Coleoptera, Carabidae)

Downloadable at DOI: 10.3897/zookeys.315.5293

The article's main impact on BugGuide is that North American species previously belonging to Zuphium would be moved to genus Zuphioides. The latter Latinized name is treated as neuter and so the previous epithets under Zuphium remain unaffected.

Species delimitation in the ground beetle subgenus Liocosmius (Bembidion), including standard and next-generation sequencing
By Maddison, DR & KW Cooper
Zoological Journal of the Linnean Society, 2014
Full title: Species delimitation in the ground beetle subgenus Liocosmius (Coleoptera: Carabidae: Bembidion),
including standard and next-generation sequencing of museum specimens

DAVID R. MADDISON & KENNETH W. COOPER

Zoological Journal of the Linnean Society, 2014, 172, 741–770. With 19 figures

Thirty ground beetles new to Virginia, and a milestone
By R.L. Hoffman, S.M. Roble, R.L. Davidson
Banisteria 27:16-30, 2006
This publication is most notable for including R.L. Davidson's invaluable notes on identifying various Tachyines, especially those of the genus Paratachys.
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