Although native to Australia, Rodolia cardinalis flourishes today throughout Australia, the United States, and Europe in areas where citrus is grown.
Biogeographic Regions: nearctic (Introduced ); palearctic (Introduced ); australian (Native )
- Borror, D., D. Long, C. Triplehorn. 1981. An Introduction to the Study of Insects. Philadelphia: Saunders College Publishing.
- Weeden, , Shelton, Li, Hoffman. 2004. "Cornell University, Biological Control" (On-line). Accessed April 07, 2005 at http://www.nysaes.cornell.edu/ent/biocontrol/predators/rodolia_cardinalis.html.
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