Catalogue of British Hymenoptera in the collection of the British Museum. Part I, Apidae - Bees - British Museum (Natural History) (1855)

Catalogue of hymenopterous insects in the collection of the British museum... - British Museum (Natural History). Department of Zoology. (Printed by order of the Trustees, 1853)

Catalogue of hymenopterous insects in the collection of the British museum... - British Museum (Natural History). Department of Zoology. (Printed by order of the Trustees, 1854)