Santa Barbara Museum of Natural History

NOTE: As of 2014, the California Beetle Project page is no longer updated.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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Funded in part by award DEB0447694 from the National Science Foundation to M. Caterino.

Last updated 01/16/2009

 California Beetle Project > Endangered beetles > Beetles of concern

Beetles of Special Concern

The following species have all been proposed for federal listing as threatened or endangered at one time or another. All were dropped from consideration due to insufficient data to make any listing decision. So they have no formal legal status at present. However, the California State Department of Fish and Game does track records of these 'species of special concern', and would welcome data on their occurrence.

   Death Valley Agabus Diving Beetle
   Agabus rumppi

   Wooly Hydroporus Diving Beetle
   Hydroporus hirsutus

   Leech's Skyline Diving Beetle
   Hydroporus leechi

   Simple Hydroporus Diving Beetle
   Hydroporus simplex

   Curved-foot Hygrotus Diving Beetle
   Hygrotus curvipes

   Travertine Band-thigh Diving Beetle
   Hygrotus fontinalis

   South Forks Ground Beetle
   Nebria darlingtoni

   Siskiyou Ground Beetle
   Nebria gebleri siskiyouensis

   Trinity Alps Ground Beetle
   Nebria sahlbergii triad

   Unnamed ground beetle
   Scaphinotus behrensi

   Unnamed ground beetle
   Scaphinotus longiceps

   Sacramento Valley Tiger Beetle
   Cicindela hirticollis abrupta

   Sandy Beach Tiger Beetle
   Cicindela hirticollis gravida

   Oblivious Tiger Beetle
   Cicindela latesignata obliviosa

   Greenest Tiger Beetle
   Cicindela tranquebarica viridissima

   San Joaquin Tiger Beetle
   Cicindela tranquebarica ssp.

   Leech's Chaetarthrian Water Scavenger Beetle
   Chaetarthria leechi

   Ricksecker's Water Scavenger Beetle
   Hydrochara rickseckeri

   Wing-shoulder Minute Moss Beetle
   Ochthebius crassalus

   Wilbur Springs Minute Moss Beetle
   Ochthebius reticulatus

   Ciervo Aegialian Scarab
   Aegialia concinna

   San Clemente Island Coenonycha Beetle
   Coenonycha clementina

   Kelso Dune Glaresis Scarab
   Glaresis arenata

   White Sand Bear Scarab
   Lichnanthe albopilosa

   Bumblebee Scarab
   Lichnanthe ursina

   Santa Cruz Rain Beetle
   Pleocoma conjugens conjugens

   Saline Valley Snow-front June Beetle
   Polyphylla anteronivea

   Death Valley June Beetle
   Polyphylla erratica

   Atascadero June Beetle
   Polyphylla nubila

   Delta June Beetle
   Polyphylla stellata

   Andrews' Dune Scarab
   Pseudocotalpa andrewsi

   Dohrn's Elegant Eucnemid Beetle
   Paleoxenus dohrni

   Wawona Riffle Beetle
   Atractelmis wawona

   Brownish Dubiraphian Riffle Beetle
   Dubiraphia brunnescens

   Giuliani's Dubiraphian Riffle Beetle
   Dubiraphia giulianii

   Unnamed riffle beetle
   Microcylloepus formcoideus

   Unnamed riffle beetle
   Microcylloepus similis

   Pinnacles Optioservus Riffle Beetle
   Optioservus canus

   Antioch Dunes Anthicid
   Anthicus antiochensis

   Sacramento Anthicid
   Anthicus sacramento

   Hopping's Blister Beetle
   Lytta hoppingi

   Mojave Desert Blister Beetle
   Lytta inseparata

   Molestan Blister Beetle
   Lytta molesta

   Morrison's Blister Beetle
   Lytta morrisoni

   Globose Dune Beetle
   Coelus globosus

   San Joaquin Dune Beetle
   Coelus gracilis

   Channel Islands Dune Beetle
   Coelus pacificus

   Rude's Longhorn Beetle
   Necydalis rudei

   Nelson's Milderes Weevil
   Miloderes nelsoni

   Lange's El Segundo Dune Weevil
   Onychobaris langei

   Blaisdell's Trigonoscuta Weevil
   Trigonoscuta blaisdelli

   Brown-tassel Trigonoscuta Weevil
   Trigonoscuta brunnotasselata

   Santa Catalina Island Trigonoscuta Weevil
   Trigonoscuta catalina

   Dorothy's El Segundo Dune Weevil
   Trigonoscuta dorothea dorothea

   Doyen's Trigonoscuta Dune Weevil
   Trigonoscuta doyeni

   Santa Cruz Island Shore Weevil
   Trigonoscuta stantoni

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