Synonyms and other taxonomic changes
Chrysochus cobaltinus LeConte, 1857
usual hosts are spp. of Milkweed (Asclepias
spp., Asclepiadaceae), also reported from Oleander (2)
Larvae are obligate root feeders, and adults eat the leaves of larval host plants.
Females are highly polyandrous, males engage in extended periods of post-copulatory mate guarding.
Cabrera-Mireles, H. 1998. Most Polyandrous. Pp. 89-91 In: Walker (editor) University of Florida Book of Insect Records, University of Florida, Gainesville.
Dickinson, J.L. 1995. Trade-offs between postcopulatory riding and mate location in the blue milkweed beetle. Behav. Ecol. 6: 280–286.
Dussourd, D.E., & T. Eisner. 1987. Vein-cutting behavior: insect counterploy to the latex defense of plants. Science 237: 898–901.
Peterson, M.A., S. Dobler, J. Holland, L. Tantalo, & S. Locke. 2001. Behavioral, Molecular, and Morphological Evidence for a Hybrid Zone Between Chrysochus auratus and C. cobaltinus (Coleoptera: Chrysomelidae). Annals of the Entomological Society of America, 94(1): 1-9.