Summary ²

Cuckoo bumblebees are members of the subgenus Psithyrus in the bumblebee genus Bombus. Until recently, the 29 species of Psithyrus were considered to constitute a separate genus. They are a specialized lineage which has lost the ability to collect pollen and to rear their brood. They have lost the worker caste and produce only sexuals, male and female. They are inquilines in the colonies of other bumblebees. Before finding and invading a host colony, a Psithy

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1. (c) desmodus60, some rights reserved (CC BY-NC), uploaded by desmodus60
2. (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Psithyrus

More Info

• iNat taxon page
• Biodiversity Heritage Library
• BOLD Systems BIN search
• Global Biodiversity Information Facility (GBIF)

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