134 Twenty-sixth Report on the State Musbjum, 



at base, larger and pointing backward. Stigmata black. Zegs tip- 

 ped with black, the anterior pair with a transversely subelliptical 

 black spot on the base posteriorly, the second pair with a dot simi- 

 larly placed. 



The larva feeds on sugar maple {Acer saccharinum). It has been 

 taken for several consecutive years at Schoharie, frequently, on a 

 fence beneath a row of maples, during the latter part of July. 



Some examples of the larvae entered the ground for pupation on 

 the 9th of August. 



Tolype velleda {Stoll). 



Larva at maturity, two and three-fourth inches long, four-tenths of 

 an inch broad, exclusive of lateral fringes. Head small and flat, and 

 nearly concealed beneath the two projecting tufts of the first seg- 

 ments. Body of a bluish-gray color above, with numerous faint 

 paler longitudinal linings; on the third segment, superiorly, a black 

 band, which is more conspicuous when the caterpillar is in motion ; 

 ventrally pale red. On each segment above are two warts, with 

 short black hairs, of which the two on the third segment, anterior to 

 the band, are more elevated. Some short, black and gray hairs, 

 scarcely visible without a lens, are sprinkled over the body more 

 abundantly at the extremities and on the sides. The lateral tufts, pro- 

 ceeding from warts nearly one-tenth of an inch long, are composed 

 of light gray and a few black hairs of unequal lengths, the longest 

 measuring one-fourth of an inch, and some ending in a fan-shaped tip. 



When in repose, both extremities of the larva are closely appressed 

 to the surface on which it rests. 



The larva was taken July 23, 1861, feeding on elm. On its body 

 were sevei'al parasitic eggs, white, acutely oval, and flat beneath, 

 which were carefully removed with the point of a knife-blade. It 

 did not eat afrer its capture, but remained nearly motionless, with 

 but two or three changes of place, until the 26th, when it spun its 

 cocoon, an inch and a half long and very flat, against the side of the 

 box in which it was secured. 



The imago, a female, was disclosed thirty-five days thereafter, on 

 August 30th. 



Another larva, found (in 1871) feeding on the leaves of a young 

 apple-tree, made its cocoon on the 10th of July. The imago emerged 

 August 14th, giving it a pupation of the same length as the preced- 

 ing one. 



