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Species Chrysolina quadrigemina - Klamath Weed Beetle

Klamath Weed Beetle - Chrysolina quadrigemina Klamath Weed Beetle - Chrysolina quadrigemina Flea beetles? - Chrysolina quadrigemina Flea beetles? - Chrysolina quadrigemina Klamath Weed Beetle - Chrysolina quadrigemina - male Is this a ladybug? - Chrysolina quadrigemina Is this a ladybug? - Chrysolina quadrigemina Beetle - Chrysolina quadrigemina
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Chrysomeloidea (Long-horned and Leaf Beetles)
Family Chrysomelidae (Leaf Beetles)
Subfamily Chrysomelinae
Tribe Chrysomelini
Subtribe Doryphorina
Genus Chrysolina
No Taxon (subgenus Hypericia)
Species quadrigemina (Klamath Weed Beetle)
Food
St. John's-wort or klamath weed (Hypericum perforatum L.), and other Hypericum species.
Life Cycle
Adults emerge from pupal cell in soil in the spring. One generation a year.
Remarks
Native to Europe and North Africa. Introduced from Australia in 1944 to combat Klamath weed (it could not be obtained from Europe because of World War II).