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Oncopeltus fasciatus, known as the large milkweed bug, is a medium-sized hemipteran (true bug) of the family Lygaeidae. [2] It is distributed throughout North America, from Central America through Mexico and the Caribbean to southern areas in Canada. [2] Costa Rica represents this insect's southern limit. [3]
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.
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]
Milkweed aphids taste foul to many predatory insects because of the compounds they ingest from the milkweed plants. However, several beneficial bugs prey on milkweed aphids, including ladybugs ...
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 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]
2) A mature fifth instar larva jerking to dislodge a large milkweed bug (a herbivore). 3) A fourth-instar larva killed by insect parasitoids, non-insect parasites or a pathogen. Some mice, particularly the black-eared mouse ( Peromyscus melanotis ), are, like all rodents, able to tolerate large doses of cardenolides and are able to eat monarchs ...
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.