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Chrysochus cobaltinus, the cobalt milkweed beetle or blue milkweed beetle, is a member of the diverse family of leaf beetles, Chrysomelidae. It is named after its cobalt-blue exoskeleton, which makes it easy to spot and distinguish, and its tendency to feed off milkweed plants. It occurs in the Western United States and British Columbia. [3]
California milkweed: Native to central and southern California: Asclepias cordifolia: Heart-leaf milkweed: Native to the Sierra Nevada and Cascade Range up to 2,000 m (6,600 ft). Asclepias cryptoceras: Pallid milkweed: Native to the western United States. Asclepias curassavica: Scarlet milkweed, tropical milkweed, bloodflower, bastard ipecacuanha
Endangered (EN) species are considered to be facing a very high risk of extinction inside. In July 2017, the International Union for Conservation of Nature (IUCN) listed 343 endangered insect species. [1] Of all evaluated insect species, 5.7% are listed as endangered. The IUCN also lists 21 insect subspecies as endangered.
The Western population of the monarch butterfly hit a near-record low with fewer than 10,000 found living in California ... to list the butterfly as an endangered species. ... that milkweed leaves ...
Cupressus pygmaea, a species of cypress tree found only in Mendocino and Sonoma counties Lewisia stebbinsii , a flowering purslane found only in Mendocino and Trinity counties Veratrum fimbriatum , the fringed corn lily, a relative of the lily found only in Mendocino and Sonoma counties
A monarch butterfly feeding on milkweed. (Shutterstock) The U.S. Fish and Wildlife Service is pushing for added protections for the monarch butterfly after seeing a population decline of about 80%.
Asclepias californica is native to California and northern Baja California. It is a flowering perennial with thick, white, woolly stems which bend or run along the ground. The plentiful, hanging flowers are rounded structures with reflexed corollas and starlike arrays of bulbous anther
All plant taxa that the State of California or U.S. Fish and Wildlife Service list as being threatened species, endangered species, or rare species in California, are included in the lists. [2] [3]: 10 They are continually updated with additions, changes, and deletions.