In western Washington prairies, six ladybug species are commonly seen including four natives,
Coccinella novemnotata (CN), Coccinella transversoguttata (CT), Cycloneda polita (CP), and
Hippodamia convergens (HC) and two exotics, Coccinella septempunctata (C7), and Harmonia
axyridis (HA). Because these two exotic ladybugs are widely distributed and may be displacing
native ladybugs, there is interest in finding mechanisms explaining C7 and HA success.
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