1896.] ON THE HYMENOPTERA OF OBYLON. 401 
‘already at work on this important undertaking of the Deutsche 
Zoologische Gesellschaft, under the general editorship of Prof. 
F. E. Schulze, of Berlin. The first part of the work was promised 
to be ready in the beginning of 1897, and twenty-five years were 
allowed for its full completion. The general character of the 
work was shown by the pattern treatise on the Heliozoa prepared 
by Dr. Fritz Schaudinn, which accompanied the prospectus. In 
this treatise of 24 pages about 60 species were described, so that 
if this ratio of species to pages was an average one it would seem 
that upwards of 190 volumes would be required to complete the 
work. 
In reference to the discussion on Zoological Nomenclature, 
which took place at the last Meeting, Mr. Sclater remarked that 
he had omitted to state that at the late International Congress of 
Zoology held at Leyden (see Bull. trois. Congr. Int. de Zoologie, 
no. 5, p. 6) a committee of five Naturalists of different countries 
had been appointed with the object of endeavouring to settle the 
differences between the several codes of Zoological Nomenclature. 
The names suggested on that occasion by Prof. F. E. Schulze, 
and accepted by the Meeting, were Prof. Blanchard of Paris, 
Prof. Victor Carus of Leipzig, Dr. Jentink of Leyden, Mr. Sclater, 
and Dr. W. Stiles of Washington. This subject would therefore 
come very appropriately before the next International Zoological 
Congress, which was proposed to be held in this country in 1898. 
The following papers were read :— 
1. A Contribution to the Knowledge of the Hymenopterous 
Fauna of Ceylon. By Lt.-Col. C. T. Binenam, F.ZS., 
F.E.S. 
[Received February 17, 1896.] 
(Plate XV.) 
I know of only two published lists dealing with the Hymenoptera 
of Ceylon. The first, by Walker, is given in chapter xi. of 
Tennent’s ‘Natural History of Ceylon, and includes Walker's 
new species described in the ‘Annals and Magazine of ‘Natural 
History,’ series 3, vols. iv. (1859) and v. (1860). The second list, 
by Motschoulsky, appeared in the ‘ Bulletin de la Société Impériale 
des Naturalistes,’ Moscow, 1863. In this Walker’s list was re- 
published, and several new species, chiefly Chalcidide and Ichneu- 
monide, were described. 
The present paper, founded on the collections made in Ceylon 
by Col. Yerbury, R.A., and Mr. E. E. Green, deals only with the 
Aculeate, or more correctly, seeing that I have included the 
Tubulifera (Chrysidide), the Monotrochous Hymenoptera found in 
Proc. Zoon. Soc.—1896, No. XX VI. 26 
