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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Longhorn and Leaf Beetles (Chrysomeloidea) » Leaf Beetles (Chrysomelidae) » Chrysomelinae » Chrysomelini » Doryphorina » Chrysolina » subgenus Hypericia (Chrysolina subgenus Hypericia) » Klamath Weed Beetle (Chrysolina quadrigemina)

Species Chrysolina quadrigemina - Klamath Weed Beetle

Classification · Explanation of Names · Range · Food · Life Cycle · Remarks · Print References · Internet References · Works Cited

Klammath Weed Beetle - Chrysolina quadrigemina

Klamath Weed Beetle - Chrysolina quadrigemina

Klamath Weed Beetle - Chrysolina quadrigemina - male

Is this a ladybug? - Chrysolina quadrigemina

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Hexapoda (Hexapods)

Class Insecta (Insects)

Order Coleoptera (Beetles)

Suborder Polyphaga

No Taxon (Series Cucujiformia)

Superfamily Chrysomeloidea (Longhorn and Leaf Beetles)

Family Chrysomelidae (Leaf Beetles)

Subfamily Chrysomelinae

Tribe Chrysomelini

Subtribe Doryphorina

Genus Chrysolina

No Taxon (subgenus Hypericia)

Species quadrigemina (Klamath Weed Beetle)

Explanation of Names

Chrysolina quadrigemina (Suffrian 1851)

Range

intoduced in n. US and Can. - Map (1)(2), native to Europe

Food

host: St. John's wort (Hypericum perforatum), and other Hypericum species.

Life Cycle

Adults emerge from pupal cell in soil in the spring. One generation a year.

Remarks

Introduced from Australia in 1944 to combat Klamath weed (it could not be obtained from Europe because of war).

Print References

Harris, P., Peschken, D., and Milroy, J. 1969. The status of biological control of the weed Hypericum perforatum in British Columbia. Can. Entomologist, 101: 1-15.

Holloway, J. K., and Huffaker, C. B. 1951. The role of Chrysolina quadrigemina in the biological control of Klamath weed. J. Econ. Ent. 44: 244-7.

Hoebeke, E.R. 1993. Establishment of Urophora quadrifasciata (Diptera: Tephritidae) and Chrysolina quadrigemina (Coleoptera: Chrysomelidae) in portions of eastern United States, Ent. News, 104: 143-152.

Internet References

Cornell(3)

Works Cited

1.	de Jong Y.S.D.M. et al. (2014) Fauna Europaea - all European animal species on the web. Biodiversity Data Journal 2: e4034.

2.	Global Biodiversity Information Facility (GBIF)

3.	Biological control: A guide to natural enemies in North America

Contributed by tom murray on 19 June, 2005 - 8:36pm
Additional contributions by Beatriz Moisset, Mike Quinn, v belov
Last updated 10 March, 2024 - 2:25pm

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