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First detailed report of brood parasitoidism in the invasive population of the paper wasp Polistes dominulus ...
By A. A. Madden, M. M. Davis, P. T. Sparks
Insectes Sociaux 57: 257-260, 2010
Cite: 776745 with citation markup [cite:776745]
First detailed report of brood parasitoidism in the invasive population of the paper wasp Polistes dominulus (Hymenoptera, Vespidae) in North America.

Lepidoptera: Chalcoela iphitalis

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i have noticed a huge increase in the moths here..
I don't think the wasps know what this moth is like they might know the ones native to Europe, and the nests are just decimated..the native wasps don't seem to have as much trouble. for what my two cents is worth