Calathus ruficollis explained

Calathus ruficollis is a species of ground beetle in the family Carabidae. It is found in western North America, covering the California Floristic Province and continuing to the Pacific Northwest.^[1] Calathus ruficollis is flightless, predaceous, and nocturnal.

Subspecies

These four subspecies belong to the species Calathus ruficollis:

• Calathus ruficollis grandicollis Casey, 1920
  • Range: southwestern British Columbia to Humboldt County, California
• Calathus ruficollis guadalupensis Casey, 1897
• Calathus ruficollis ignicollis Casey, 1920
  • Range: eastern Washington, western Idaho, south to central California (including Sierra Nevada)
• Calathus ruficollis ruficollis Dejean, 1828
  • Range: Mendocino County in California to Baja California and southern Arizona. Introduced in Hawaii.

Further reading

• The Taxonomy of the Nearctic Species of the Genus Calathus Bonelli (Coleoptera: Carabidae: Agonini). 1972. Ball . George E.. Nègre . Jacques. Transactions of the American Entomological Society. 98. 4. 413–533. 25078119.
• Book: Catalogue of Palaearctic Coleoptera, Volume 1: Archostemata - Myxophaga - Adephaga. 2017. Lobl . I.. Smetana . A.. Apollo Books. 978-90-04-33029-0.

Notes and References

1. Chatzimanolis . Stylianos . Caterino . Michael S. . 19 March 2007 . Limited phylogeographic structure in the flightless ground beetle, Calathus ruficollis, in southern California . Diversity and Distributions . en . 13 . 5 . 498–509 . 10.1111/j.1472-4642.2007.00352.x . 83750895 . 1366-9516.