126 TWENTY- SIXTH REPORT ON THE STATE MUSEUM. 



Callosamia Promethea (Drury). 



A deposit of eggs hatched July 6th, laid nineteen days before. On 

 the 14th the first molting occurred. Length of larva 35-100ths of an 

 inch. Body pale green, with yellow bands bordered by black ; rows 

 of tubercles are apparent. 



From having previously fed in companies of from twenty to thirty, 

 there are now seldom more than six collected on a single leaf. A 

 larva usually commenced eating into the leaf at a point in its margin, 

 where it would be joined by others, cutting into the body of the leaf, 

 until often the entire interior was consumed, leaving an unbroken 

 margin (except at the entering point) of a breadth barely sufficient 

 to serve as a support for the larvae. 



At the second molting, on the 20th of July, their length was 

 six-tenths of an inch. Body light yellow-green, with black transverse 

 interrupted markings; on the second and third segments each, two 

 clubbed yellow tubercles and one on the eleventh ; six rows of smaller 

 black tubercles. Legs yellow, with a white spot. 



August 1st, the larvae molted for the third time. The subsequent 

 molting was not noted. On August 9th, some of the colony com- 

 menced the construction of their cocoons, fifty-two days from ovipo- 

 sition, and thirty-three days from the disclosure of the larvae. 



A measurement taken of some eggs of Promethea gave for the 

 diameters .077 and .063 of an inch. They are of a white color, with 

 an ochreous-yellow spot on the upper side. 



Act las Luna (Linn.). 



From an oviposition of one hundred and eighty eggs, larvae were 

 developed on July 25th. Body pale green, with a brown lateral 

 stripe and a dorsal one on the anterior segments, and with rows of 

 tubercles bearing bristles. Head crossed with a brown stripe. 



On July 30th, larvae molted for the first time. Length three-eighths 

 of an inch. Color pale green. On first segment four red-tipped 

 tubercles ; on the second and third two similar ones, and a medial 

 one on the eleventh ; the tubercles elsewhere on the body are yellow- 

 tipped. The head is marked on front with four black spots forming 

 nearly a square. 



Second molting on August 3d. Length one-half an inch. The 

 tubercles of the first, second and eleventh segments, above mentioned, 

 are tipped with deep red, and have several hairs branching from 

 them. The tubercles of the lower lateral row are also red with 



