Westwood, J. O. 1835. [Untitled. Introduced by: "Specimens were exhibited, partly from the collection of the Rev. F. W. Hope, and partly from that of Mr. Westwood, of various Hymenopterous insects, which Mr. Westwood regarded as new to science."]. Proceedings of the Zoological Society of London 3:68-72. PDF

Notes: Date of publication from Waterhouse (1937).

Günther, A. 1877. Account of the zoological collection made during the visit of H. M. S. "Peterel" to the Galapagos Islands. Proceedings of the Zoological Society of London 1877:64-93.

Kirby, W. F. 1889 ("1888"). On the insects (exclusive of Coleoptera and Lepidoptera) of Christmas Island. Proceedings of the Zoological Society of London 1888:546-555. PDF

Notes: Date of publication from Duncan (1937).

Bingham, C. T. 1896. A contribution to the knowledge of the Hymenopterous fauna of Ceylon. Proceedings of the Zoological Society of London 1896:401-459.

Hopkinson, J. 1908 ("1907"). Dates of publication of the separate parts of Gmelin's edition (13th) of the "Systema Naturae" of Linnaeus. Proceedings of the Zoological Society of London 1907:1035-1037.