10 OX SOME INSECT DEFORM IT IKS. 



caterpillar through the small opening of the men turn. As the skin of 

 the chrysalis must haAe existed. I did not deem it necessary to dissect 

 the specimen, especially as Wesmael's dissection of Nymphalis PopuU 

 has sufficiently explained the fact. 



The head of the caterpillar resemhles very much the figure in Merian 

 Surinam. Lepid., pi. 23. The color is leather-yellow, with two brown 

 bands on each side. There are two yellow finger-shaped horns on the 

 top, and three similar ones on each side ; they become successively 

 smaller. The last one is very short. 



The specimen has doubtless lived long enough to get the colors per- 

 fectly developed, and to break down the mentum with the spiral tongue. 

 It differs from Wesmael's butterfly in having retained the dorsal part 

 of the prothorax, though somewhat distant to allow a view of the tho- 

 rax of the imago. In Wesmael's butterfly the palpi were not covered. 

 I have quoted erroneously, in the Proceed. Bost. Soc. X. H., 1868, Vol. 

 XII, p. 163, the Brazilian specimen as Morpho Ilioneus, and Mueller's 

 specimen as Dicranura vimtla. 



Vanessa Antiopa. 



Professor Zeller has described in the Isis, 1839, p. 259, a specimen 

 with the head of the caterpillar, raised by himself together with about 

 150 others. The specimen differs from them only by the presence of 

 the head of the caterpillar, which is in a vertical position, just as in the 

 caterpillar. The mouth is closed. Having cut a part of the left side, 

 the Professor could observe a hollow space between the head of the 

 caterpillar and the remaining parts of the insect. Behind the head 

 and not connected with it the two anterior plates of the chrysalis are 

 retained. The butterfly made its transformation in the absence of the 

 Professor, and was pinned at the same time with all the others. It was 

 impossible to find its chrysalis skin. 



Vanessa Atalanta. 



Mr. Bond exhibited in the Entomological Society m London. Febru- 

 ary 6, 1871, a specimen bred by a metropolitan collector, which still 

 bore the larval head. The specimen, as I am informed by Mr. MLach- 

 lan, was very perfect. 



Pieris Rapae. 



Among a number of chrysalids which had not transforaied, I found in 

 the fall of 1871, in Cambridge, one of an extraordinary appearance. 

 In casting off the skin of the caterpillar only the thoracic part of the 



