Howard F. Schwartz, Colorado State University, Bugwood.org

Howard F. Schwartz, Colorado State University, Bugwood.org

Howard F. Schwartz, Colorado State University, Bugwood.org

Howard F. Schwartz, Colorado State University, Bugwood.org

Howard F. Schwartz, Colorado State University, Bugwood.org

Joseph M. DiTomaso, University of California - Davis, Bugwood.org

Joseph M. DiTomaso, University of California - Davis, Bugwood.org

Joseph M. DiTomaso, University of California - Davis, Bugwood.org

D. Walters and C. Southwick, USDA, Bugwood.org

D. Walters and C. Southwick, USDA, Bugwood.org

D. Walters and C. Southwick, USDA, Bugwood.org

D. Walters and C. Southwick, USDA, Bugwood.org