C xlva } 
protruded from the posterior extremity of the body. In 
January of this year I observed a male Amauris niavius, L., 
settle on the upper surface of a leaf with its wings expanded. 
The insect flexed its abdomen, making the dorsal surface 
convex, so that the extremity of the body was brought level 
with the brands, and the tufts were then thrust out. By 
alternately flexing and straightening out the abdomen the 
tufts were passed to and fro over the surface of the brands 
as though some secretion was being conveyed from the one 
to the other. Prof. Poulton has suggested that the greasy 
appearance of the brands may be probably interpreted on the 
hypothesis that they serve to retain and distribute a scent 
employed in courtship brought to them by the tufts.” 
Dr. Lonestarr said that he was satisfied that in Huploea 
and Danaida chrysippus the characteristic scent was not caused 
by the tufts and brands, though these were very likely the 
cause of another volatile scent which certainly existed in these 
cases. Female Danaids have a scent as well as males; the 
scent common to both being nauseous, while that peculiar to 
the male is probably a help in courtship. 
Prof. Pouuron remarked that the brands actually are greasy, 
and not merely look so, and that they may for a time hold 
the scent transferred to them by the tufts. 
Dr. JorpDAN observed that the discovery in Natal of inter- 
mediates between cenea and planemoides, which from previous 
experience had been supposed not to exist, made it impossible 
any longer to argue from their non-existence in favour of the 
sudden, as opposed to the gradual, evolution of dimorphic 
forms. 
Paper. 
Com. J. J. WaLKER read the following paper :— 
“Some remarkable ant-friend Lepidoptera of Queensland.” 
By F. P. Dopp, F.E.S8., with Supplement by E. Meyrick, 
B.A... PRS. 
