Very rare bumblebees
Great yellow bumblebee Bombus distinguendus
Queens, workers and males are all yellow in colour, with a distinct band of black hair stretching across the thorax. In males there are usually some yellow hairs mixed in with the black band, and there is more prominent yellow hair on the face. This species is now only found on the north coast and islands of Scotland, and in Ireland.
Shrill carder bee Bombus sylvarum
The queens, workers and males all have pale yellow hair on the thorax, with a dark black-brown band in the middle of the thorax between the wing bases. The abdomen mainly has pale yellow-ginger hairs, but may have darker bands along it. The tail is ginger-red, but this can fade and be quite pale.