Psithyrus citrinus

Psithyrus citrinus

Psithyrus citrinus (the lemon-yellow cuckoo bumble bee)

Description (from Medler and Carney 1963)

Queen:
Male:

Diagnosis

Flight periods

Queens: . Males: .

Main flower preferences

Host species

Among Bombus species that occur in Illinois, P. citrinus is known to parasitize B. impatiens and B. vagans.

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