Large milkweed bug

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Large milkweed bug
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hemiptera
Family: Lygaeidae
Genus: Oncopeltus
Species: O. fasciatus
Binomial name
Oncopeltus fasciatus
(Dallas, 1852) [1]

The milkweed bug, Oncopeltus fasciatus, is a medium–sized hemipteran (true bug) of the family Lygaeidae. It feeds mainly on grains, particularly those of the milkweed. Like all hemiptera, it feeds through a long mouthpart known as a rostrum. O. fasciatus is commonly used in science due to ease of rearing and ease of dissection.