A relatively common species in forests as well as coastal habitats. The hosts are different species of mason bees Osmia. The genus can be recognized by the lack of a frontal carina and the lack of apical teeth along hind margin of T3. C. hirsuta can be separated from C. radians by the long dark hairs of T3, and the denser punctation of the tergites.
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Juho Paukkunen
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Alexander Berg
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Villu Soon
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Frode Ødegaard
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Paolo Rosa
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NTNU Vitenskapsmuseet
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Norsk institutt for naturforskning
