(Colletes floralis)
The northern colletes (Colletes floralis) is a species of bee within the genus Colletes.Northern colletes are solitary bees,though females may nest in what are termed aggregations – sites where the bees nest close together,but do not form colonies as social bees do.They nest underground in soft (often sandy) soil,digging burrows up to 20 times their body lengnth.It is often to be found nesting in coastal sand dunes and,on Hebridean islands,machair (coastal grassland).