Search Field Guide
Advanced Search
MT Gov Logo
Montana Field Guide

Montana Field Guides

Saint Anthony Dune Tiger Beetle - Cicindela arenicola

Species of Concern
Native Species

Global Rank: G1G2
State Rank: S1S2
(see State Rank Reason below)

Agency Status


External Links

State Rank Reason (see State Rank above)
Species is ranked S1S2 as a result of its global rarity and recently detected occupancy of isolated suitable habitat in the Centennial Sandhills of southwest Montana.
General Description
Length 11-13 mm. Coppery red to greenish red in center of elytra and on two transverse marks projecting out onto elytra over a general cream background (Pearson et al. 2006).

Range Comments
First described by Rumpp (1967) from a small population at the St. Anthony Dunes in eastern Idaho. Further surveys located the species in eight counties in southeastern Idaho within the Snake River Plain. Surveys in 2008-09 by Ross Winton at Montana State University identified one apparently viable population in the Centennial Sandhills north of Red Rock Lakes NWR (Winton et al. 2010). Genetic analysis confirms that this population is best regarded as the St. Anthony Dunes Tiger Beetle (Goldberg et al. 2012).

Observations in Montana Natural Heritage Program Database
Number of Observations: 3

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)

Occupied habitat is dominated by sagebrush with partially stabilized soils with beetles preferring the open loose sand associated with the peak of sandhills and avoiding more stabilized soils (Winton et al. 2010).

Over collecting, high intensity grazing, off-road vehicle impacts, and weed encroachment (e.g., Cheatgrass) are all recognized as potential management concerns.

Login Logout
Citation for data on this website:
Saint Anthony Dune Tiger Beetle — Cicindela arenicola.  Montana Field Guide.  .  Retrieved on , from