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NOTE: As of 2014, the California Beetle Project page is no longer updated.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 https://serv.biokic.asu.edu/ecdysis/

  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 > Endangered beetles > Valley Elderberry Longhorn Beetle

Valley Elderberry Longhorn Beetle
Desmocerus californicus dimorphus
listed Threatened August, 1980

The Valley Elderberry Longhorn Beetle lives in California's Central Valley. The beetle is closely dependent on elderberry trees (Sambucus). The beetle's larvae tunnel through and eat the pithy interior of its branches, and the adults are rarely found far from the plant.

Elderberry trees tend to be concentrated around streams and rivers, and the 'VELB' is restricted to such areas. The beetle was historically distributed throughout the Valley. But as much as 90% of their habitat has been cleared for agriculture. Much of the remainder is regularly exposed to pesticides, and faces threats from invasive plant species.

Efforts to save the Valley Elderberry Longhorn Beetle have employed multiple strategies. The most important is protection of existing riparian habitats. Only a small number of native populations of the beetle remain. Providing for the species' long term security will also require restoration of impacted riparian areas. Once suitable habitats are created and/or protected, conservation biologists have been able to successfully transplant elderberry trees inhabited by beetles into these areas.



 

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