( Deevan ) 
the form of the 2 commonly taken in the Chilterns, having the 
basal area of the hind-wings rayed with blue; also, a fine ? 
of the form of coridon which occurred with rutilus in the 
Gironde, on the marshes themselves, and entirely away from 
chalk, or limestone formation. 
GYNANDROMORPHOUS GONEPTERYX CLEOPATRA.—Capt. H. 
B. Pureroy exhibited a short series of G. cleopatra which 
included two gynandromorphous specimens. The parents 
came from abroad in 1908, and the brood had been kept up 
in Kent ever since. He said that the 2 ? paired before hiberna- 
tion, and that this was the most important factor making for 
success. 
Dr. LonestaFF inquired whether Capt. Purefoy had noticed 
the scent of the ¢ and @ of G. cleopatra, and observed what 
an exceptional opportunity he had of doing so. He had been 
unable to distinguish some 2Q of G. cleopatra from those 
of G. rhamni, but the scent might possibly differ. If the scent 
of the $ were connected with the orange suffusion, those speci- 
mens in which there was but very little orange should have 
very little scent. 
The Rev. G. WHEELER pointed out that the 9? of these 
two species might be distinguished by the underside of the 
fore-wings, those of G. cleopatra having a slight orange suffusion 
along the median nervure. 
Mr. F. Enocx said that he had sent several pupae of G. 
rhamni to a young collector, from one of which a 3 had emerged 
with unusually large orange spots. These specimens had been 
attacked on the setting board by ants, which had eaten out 
the orange spots only. 
Prof. Poutton said that ants were known previously to 
eat out only the scent-patches on certain African butterflies. 
SMERINTHUS POPULI.—Mr. L. W. Newman exhibited four 
gynandromorphous specimens of Smerinthus populi, three 
with the left side 9 and right side 3, and one vice versa. In 
three of the specimens there was no trace of variation in the 
wings either in size or markings, the antennae only denoting 
gynandromorphism. The fourth specimen showed well the 
two sexes, the left side being smaller and quite differently 
marked from the right. He also showed two extreme light, 
