Yellowhead bumblebee

The yellowhead bumble bee has a dense, untidy fur. The head is yellow with black hairs intermixed on the posterior part,[3] the thorax has a mixed black and yellow colouration, often (always with the queen) with a black, central field. The first two terga (abdominal segments) are yellow, on the females often with a black, central field on terga 1 to 2. Terga 3 and 4 are red, and the tail black, sometimes with yellow fields.-Wikipedia