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NOTE: As of 2014, the California Beetle Project page is no longer updated. The original database and list of California beetles in the menu on the left will remain for the time being, but the information contained within is not necessarily current. SBMNH Entomology Curator Matthew L. Gimmel has divided up the function of the original database into two conceptual halves:

  1. The SBMNH Entomology specimen-level database, including all SBMNH beetle specimens included in the CBP database, which is now available (and ever-growing) through the ecdysis portal at

  2. A literature- (and available specimen-)based checklist.
  3. of the Coleoptera of California, which is being revised and re-compiled by Dr. Gimmel, and, as of January 2017, is about 85% complete.

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Last updated 01/16/2009

 California Beetle Project > Species Pages > Brachinus tschernikhi


Scientific name: Brachinus tschernikhi Mannerheim
    Order Coleoptera
    Superfamily Caraboidea
    Family Carabidae

Images (click to enlarge)

What it looks like: 7.0-9.5 mm in length. 4.2-4.4 mm in width. Wing-covers blue with highly defined ridges and with entire dorsal surface having dense hair. Head, pronotum (dorsal part of the thorax), and abdominal segments brown to reddish brown. Pronotum smooth.

Where you'll find it: Deserts and coastal areas of southern California and northern Baja California. Mid to eastern Arizona.

Natural History: Much in regard to the lifestyle of B. tschernikhi is unknown or unverified. B. pallidus, which is very similar to B. tschernikhi, has been studied more rigorously. Because of their likeness, we can assume that B. tschernikhi has a lifestyle similar to that of B. pallidus in that it is a generalist predator and scavenger. It also can be assumed to be a parasite of the pupae of streamside insects in its larval stage, but the species of insects that it has a parasitic relationship with is not known. It is usually found in rocky, streamside areas. With the ability to thrive in both wet and dry places, this species, although sparsely populated and uncommonly observed, occupies an extremely wide range of habitats.

This page was written by David Honsberger, a 2005 participant in the Quasars to Sea Stars teen program.

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