256 



Forty-first Report on the State Museuii. 



Fig. 54. — Danais Aechippus: larva and chrysalis. 

 (After Emmons.) 



In the second stage, the front horns are straight, transversely 



wrinkled, moderately- 

 tapering, with a length 

 about equal to the 

 breadth of the body. 

 The horns of the 

 eleventh segment are 

 about one-fourth as 

 long as the anterior 

 ones. Head, with the 

 lateral perpendicular 

 lines yellow, and with 

 a yellow triangular 

 spot centrally in front. 

 In the third stage, 

 in readiness for molt- 

 ing, the anterior horns 

 are curved, and have a length equal to the breadth of the body, and 

 are twice as long as the posterior ones. No notes were made of the 

 above features in the subsequent stages. The mature larva is repre- 

 sented in Figure 54. 



A larva suspended for pupation on July nineteenth, and pupated on 

 the following day. Its chrysalis is shown at h in the figure. 



The presence of the young larvae on the leaves may readily be 

 detected, even when they are so small as to escape ordinary observa- 

 tion, through a knowledge of its habit of feeding at this stage. It 

 probably first consumes the shell from which it emerged, as no 

 remains of it were seen. Then, without leaving its position, and, 

 adhering by its hinder legs, it eats through the tender leaf, and con- 

 tinues to feed, by simply bending its body to either side, in a large 

 portion of a circle of less than one-fourth of an inch in diameter. 

 Examination of the leaves will often show a crescentic hole, unmistak- 

 ably the work of the larva, and, usually, its presence on its feeding 

 ground, just within the crescent. 



The following species of butterflies were observed at Sageville, Lake 

 Pleasant (southern portion of the Adirondack region, height above 

 tide of about 1,800 feet), during the three weeks from July sixteenth 

 to August fifth. Some species were possibly overlooked, as no special 

 attention was given to them — the locality not offering rare forms : 



Papilio Asterias Fdbr. Colias Philodice Godt. 



P. Turnus Linn. Danais Archippus {Fabr.). 



Plerls oleracea {Harris) form sestiva. Argynnis Cybele Fabr. 



P. rapte {Linn.). A. Aphrodite Fabr. 



