Gypsy cuckoo bumble

Gypsy cuckoo bumble

Observation - Gypsy cuckoo bumble. Description: Can't see pollen bags on back legs. Distinctive white shoulders - but can't find any bumbles that match. Male Field cuckoo seems to vary wildly. Is it one of these?

Can't see pollen bags on back legs. Distinctive white "shoulders" - but can't find any bumbles that match. Male Field cuckoo seems to vary wildly. Is it one of these?