( wi) 
Uganda (Proc. Ent. Soc. Lond., 1904, p. xv). The present 
exhibit showed an uninterrupted transition, in the case of the 
males, from one form to the other. The females passed by 
almost imperceptible gradations from the brownish-orange J, 
agathina, with its marginal row of well-defined black spots, up 
to a form with whitish fore-wings and very pale ochreous 
hind-wings broadly margined in black, between which latter 
form and the ordinary female of JZ. chloris there was only 
a slight interval. It was true that his present material did 
not enable him to bridge over the gap; but in view of the 
near approach to the typical J/. chloris exhibited by these 
intermediate females, and of the complete transition which he 
had shown to exist in the case of the males, he thought it 
could hardly be doubted that further investigation would 
supply the very few steps still lacking. A transitional female 
from Wadelai, of the kind he had described, had been named 
clarissa by Butler. 
The greater number of the 31 specimens now shown were 
collected by Mr. Wiggins on the north-east and north-west 
shore of the Victoria Nyanza ; two of his males were from 
Toro in Western Uganda, and one interesting female specimen, 
showing an early stage of departure from IM. agathina in the 
direction of MM. chlovis, was captured at Mombasa. The fact 
that the forms referred to occurred together was established 
by a remarkable series of six specimens all taken on the same 
day by Mrs. Leaky near Mengo, on the north-west shore of 
Victoria Lake. ‘This series consisted of a typical male and 
female M. chloris, and a nearly typical male I. agathina; 
together with a transitional male and two transitional females, 
the latter closely resembling the type of Butler’s M/. clarissa. 
Mr. Neave had shown, from Uganda specimens also 
collected by Mr. Wiggins, that a similar transition occurred 
in that region between the western Amauris niavius, Linn., 
and the eastern and southern A. dominicanus, Trim. (Proc. 
Ent. Soc. Lond., 1903, p. xciv ; Trans, Ent. Soc. Lond., 1906, 
p. 211). 
Bi-centenary of Linneus. 
After the exhibitions, the PresipEntT said that Mr. Morice, 
who had gone as a delegate from the Society to the Bicentenary 
