Stenostrophia amabilis (LeConte, 1857)

amabilis (LeConte, 1857:64)

Linsley and Chemsak (1976, p. 114) report Pinus ponderosa and P. jeffreyi as host plants, and the following flower records: Chrysothamnus, Ceanothus, Verbascum, Spiraea, Chrysolepis. The species ranges from British Columbia to the southern Sierra Nevadas. 

References

1. LeConte, J. L. 1857. Report upon Insects collected on the survey. In, Report of Explorations and Surveys to ascertain the most practicable and economical route for a railroad from the Mississippi river to the Pacific Ocean. Made under the Direction of the Secretary of War, in 1853-5, according to Acts of Congress of March 3, 1853, May 31, 1854 and August 5, 1854, 12:1-72, 2 pls.
2. Linsley, E.G. and J.A. Chemsak. 1976. Cerambycidae of North America. Part VI, No.2. Taxonomy and Classification of the Subfamily Lepturinae. University of California Publications in Entomology 80, 186 pp.
3. Penrose, R. L. and Richard L. Westcott.  1974a. Lepturine longhorns collected on chinquapin bloom (Coleoptera: Cerambycidae).  The Pan-Pacific Entomologist 50(1):72.