A common species in sandy areas. It can be found in large amounts where the host, Cerceris arenaria, having colonies. The species is frequently visiting flowers. C. nobile can be distinguished from the closely related H. niemelai by the larger size, and the unique sexual characters of sternites and middle tibiae.
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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
