Answer: bumblebees

AnswerCrossword Clue
BUMBLEBEESBuzzers
BUMBLEBEESMembers of the Hymenoptera.
BUMBLEBEESHymenoptera.
BUMBLEBEESBig pollinators
bumblebeesA large hairy bee with a loud hum, living in small colonies in holes underground
bumblebeesBUMBLEBEE, a large bee of the genus Bombus