1896. | ON EUROPEAN AND ASIATIC BUTTERFLIES. 609 
3. Two Riippell’s Vultures ( Gyps rueppelli), received in exchange 
May 28th, from the Zoological Gardens, Cairo. These fine birds, 
which I saw at,Cairo when there last year (see P. Z.S. 1895, p. 400), 
are said to have been obtained in the Western Desert of Egypt, 
and are of much interest, as the species has not been previously 
noticed within the confines of Egypt proper. The authorities of 
the Gizeh Gardens have kindly parted with them in our favour. 
Mr. Sclater exhibited the skin of a species of Cercopithecus which 
had been received, living, by the Society on the 20th September 1895, 
and had died in the Menagerie on the 23rd of April last, and a 
water-colour drawing of the same animal by Smit. Mr. Sclater 
had been uncertain as to the correct determination of this specimen 
(which had been obtained by Mr. John M. W. Pigott, when 
Acting-Administrator for the I. B. E. A. Company at Mombasa, 
East Africa, from a native who had caught it) in its lifetime, but now 
believed that it must be referable to his Cercopithecus stairsi (P. Z.S8. 
1892, p. 580, pl. xl.), as shown by comparison with one of the 
typical specimens. The present specimen, which was a female, 
agreed in nearly every respect with the male presented by 
Mr. F. Hintze, June 7, 1893 (see P. Z.S. 1893, p. 612), except in 
being of smaller size, which was of course attributable to its sex, 
and in having the bright rufous spot on the temples not so clearly 
marked although plaiuly visible. The short erect hairs on the 
front of the forehead were also more stained with rufous than in 
the male specimen. 
Mr. Sclater remarked that this distinct species of Cercopithecus 
had now been received from three different spots on the East Coast 
of Africa—Chindi at the mouth of the Zambesi, Mozambique, and 
British East Africa. 
Mr. Sclater exhibited a series of 12 water-colour drawings of 
African Antelopes, taken partly from specimens in the Natural 
History Museum and partly from examples living in the Society’s 
Gardens, executed by Mr. Edmund Caldwell, of 41 Clifton Gardens, 
Maida Vale. 
A communication was read from Mr. Henry J. Elwes, F.Z.S., 
and Mr. Edwards, containing a revision of the European and 
Asiatic Butterflies of the Family Hesperiide. The species treated 
of in this paper were about 450 in number and were divided into 
about 100 genera. 
This paper will be printed in the Society’s ‘ Transactions.’ 
