Catalogue of the hymenopterous insects collected as Sarawak, Borneo; Mount Ophir, Malacca; and at Singapore by A.R. WallacePublished in Journal of the Proceedings of the Linnean Society of London, in 1857, in volume 2, issue 6-7, pages 42-130Created: 2011-06-03, modified: 2022-08-09doi:10.1111/j.1096-3642.1857.tb01759.x