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Lygaeus kalmii kalmii Stal, 1874 – western small milkweed bug. Range includes Arizona (where it is very common in almost every sandy-grassy patch) and California, though California milkweed bugs are somewhat rare. The western subspecies has white spots and are seen with milkweed in bushy dry areas, but only for feeding, and in wet areas to ...
The Lygaeidae are a family in the Hemiptera (true bugs), with more than 110 genera in four subfamilies. The family is commonly referred to as seed bugs, and less commonly, milkweed bugs, or ground bugs. [1] Many species feed on seeds, some on sap or seed pods, others are omnivores and a few, such as the wekiu bug, are insectivores.
Oncopeltus is a genus of seed bugs in the family Lygaeidae, which has at least 40 described species. [1] [2] [3] [4]Oncopeltus varicolor Large milkweed bug molting from third to fourth instar.
In addition to its plant-based diet, O. fasciatus has been observed feeding on aphids, monarch caterpillar eggs, and larvae, displaying opportunistic behavior. [4] [20] This bug also feeds on A. nivea, Sarcostemma clausa, Calotropis procera, and Nerium oleander. The southern populations often consume Asclepias curassavica, a tropical milkweed.
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]
These beetles feed by opening veins in the milkweed plant, decreasing the beetles' exposure to latex-like sap. [6] Mating milkweed beetles on common milkweed. The beetle vibrates when it is making a warning noise. A red milkweed beetle cutting milkweed vein to reduce/stop latex pressure before feeding beyond the cut.
The false milkweed bug is widely distributed across the eastern United States and Canada. [5] It primarily feeds on the seeds of false sunflower, Heliopsis helianthoides. [6] The false milkweed bug is commonly confused with other black and red or orange insects, including Oncopeltus fasciatus, Lygaeus kalmii, and Lygaeus reclivatus. [5]
The milkweed leaf beetle (Labidomera clivicollis) is a species of leaf beetle from the family Chrysomelidae. [2] It is round bodied, 8–11 mm in length with a black head and pronotum and bright orange to yellow elytra with variable mottled black patches.