@book {464,
	title = {Hymenoptera - Aculeata (Scolioidea, Vespoidea and Sphecoidea).},
	series = {Handbooks for the Identification of British Insects.},
	volume = {6(3b)},
	year = {1980},
	pages = {122},
	url = {http://www.royensoc.co.uk/sites/default/files/Vol06_Part03b_Richards.pdf},
	author = {Richards, OW}
}
