16 
LYCiENA II., III. 
molested by them; indeed, the ants seemed to try and defend the larvae from 
him. Of all these larva^none were infested by Ichneumons, and all produced 
butterflies.” This last observation is very interesting. 
Rev. II. C. McCook informed me that in the spring of 1877 he saw a small 
green larva on Cimicifuga racemosa, and “ a black ant attending it, stroking the 
tail incessantly, moving away, and returning to go through the same process. 
He watched this for two hours, and saw that the purpose of the ant was at least 
friendly, but was at a loss to explain these strange manipulations.” Mr. Saun- 
dri> (Can. Ent. x. 14) relates that he had observed ants running over larvae of 
L. Scudderii, and that the discovery of the larvae was made easy by the presence 
of the ants. 
1 have observed similar organs in larvae of L. Comyntas and L. Melissa, both 
of which species I have bred from the egg. The organs of Comyntas are of same 
shape as in Pseudaryiolus, both the cone and the tube and its tentacles; and on 
introducing ants, the behavior of the larva was as in the other species. As to 
Melissa, I am not able to say whether the tentacles precisely agreed in shape 
with those figured on our Plate, but they stood erect upon the°dome in same 
manner, and the fluid appeared on 11. Guenee figures the tentacles of Bcetica 
as spindle-shaped, and instead of standing erect they droop about the dome and 
are cjiiite feathery. 
In the allied sub-families, Tliecla and Chrysophanus, no such organs have been 
discovered, and I apprehend a sufficient generic distinction, if one were needed 
between two groups whose preparatory stages are so different, will here be 
found, especially between Lycaena and Chrysophanus, which some collectors still 
persist in uniting in one genus. 
