The two subspecies have been distinguished on the basis of dorsal coloration and distribution: C. senilis senilis, brown to blackish-brown from northern California (San Francisco Bay area to Solano and Sonoma Counties, a disjunct inland population at Carrizo Plain, San Luis Obispo County) and C. senilis frosti, greenish to greenish-brown (rarely bluish), from coastal southern California (San Diego to Ventura and Santa Barbara Counties, a disjunct inland population at Lake Elsinore, Riverside County). Much of the historical distribution of the latter subspecies has been fragmented into isolated populations because of cumulative habitat degradation.
|Cicindelidia senilis senilis G.H. Horn|
San Franciso Bay, California
|Cicindelidia senilis frosti Varas-Arangua|
California Academy of Sciences #8149
|Cicindelidia senilis frosti: Labels of Holotype|
California Academy of Sciences
|Manhattan Beach, Los Angeles County.|
Cicindelidia senilis senilis image courtesy of Bugguide. C. senilis frosti images courtesy of California Academy of Sciences Research Archive. Period Manhattan Beach photo courtesy of Maureen McGowan.
© Delbert La Rue 2012. All Rights Reserved.