XIX. Hymenoptera Aculeata collected in Algeria by the Rev. Alfred Edwin Eaton, M.A., F.E.S., and the Rev. Francis David Morice, M.A., F.E.S. Part IV. Descriptions of new Sphegidae
Published in Transactions of The Royal Entomological Society of London, in 1910, in volume 58, pages 517-531
Date published:1910