Chrysochus cobaltinus, the cobalt milkweed beetle or blue milkweed beetle, is a member of the diverse family leaf beetles (Chrysomelidae). It occurs in the Western United States and British Columbia. See more C. cobaltinus has an iridescent cobalt-blue exoskeleton. Both sexes range from 6–9 millimetres (0.24–0.35 in) in length, with clubbed antenna. The elytra usually have more or less evident epipleura, changing within the varying … See more C. cobaltinus is similar to click beetles in being able to launch themselves a couple times the length of their body. Both adults and … See more C. cobaltinus ranges in High Plains from British Columbia south through Washington, Idaho, Montana, Oregon, California, Nevada, Utah, and Colorado to Arizona and New Mexico. … See more Adults emerge in early summer and persist on milkweed plants in patches for approximately six weeks. Females are highly polyandrous; males engage in extended periods of … See more http://www.xerces.org/milkweed-faq
Chrysochus - Wikipedia
WebBlue Milkweed Beetle (Chrysochus cobaltinus) Order: Coleoptera: Family: Chrysomelidae: Genus: Chrysochus: Species: cobaltinus: Regional. This bug has been reportedly found in the following regions: … WebBlue Milkweed Beetle (Chrysochus cobaltinus) Order: Coleoptera: Family: Chrysomelidae: Genus: Chrysochus: Species: cobaltinus: Regional. This bug has been reportedly found in the following regions: Agoura Hills, California. Upload an image. Members' Notes: No details have been posted. can gerd cause inflammation
Host use evolution in Chrysochus milkweed beetles: evidence from ...
WebOur sequence-based phylogeny estimate allows us to reconstruct historical diet evolution in Chrysochus. Starting from an original association with Asclepiadaceae, the common ancestor of C. auratus and C. cobaltinus included Apocynaceae in its diet. WebIt moves around a great deal, so that it is unusual to see two successive generations in the same location. Females appear to avoid ovipositing on milkweeds already attacked by the oleander aphid (Aphis nerii) or the bright blue-green beetle Chrysochus cobaltinus. The Monarch acquires protective chemicals (cardenolides, "cardiac glycosides ... WebJan 1, 2001 · Locations of Chrysochus populations along the Yakima River valley of south-central Washington where the distributions of C. auratus and C. cobaltinus overlap. One of the four locations from which hybrids have been recorded (WA8) is based on specimens in museum collections. The remaining three sites of known hybridization (WA6 and the two … can gerd cause inflammation of the throat