Eleventh Report op the State Entomologist 141 



the majority of the larvae had spun up about August loth. Several pup» 

 were found in the field at this latter date; in nature they are found under 

 stones and other protective materials above ground. 



Number of Generations. 

 The insect remained in the pupa state during the winter, and moths 

 emerged on March 14th, 20th, and May 6th. Though the emergence of 

 the adults was most likely hastened by the warmth of the greenhouse 

 where they were kept all the winter, yet it would hardly seem as though 

 their appearance would be earlier by nearly three months. As pre- 

 viously recorded, young larvae were found in the early part of July ; some 

 were so young that they could not have hatched long before being 

 found. The eggs from which they emerged were in all probability 

 deposited only about ten days previously, or the last of June — a week 

 to ten days is often found to be the time between oviposition and hatch- 

 ing in Lepidoptera, especially in warm weather. The irregular appear- 

 ance of the few moths bred does not permit of a very accurate opinion as 

 to the normal time of their appearance. Still it is possible that there is 

 an earlier brood than the one observed, especially as pupae were seen in 

 the autumn, and BeutenmuUer records the occurrence of the larvae in 

 September. It is not unlikely that the insect hibernates either as a larva 

 or pupa with nearly equal facility. 



The Moth. 

 The imago is a plain appearing brownish-gray moth with a wing 

 expanse of i. i inch. The palpi above, head, and thorax are orna- 

 mented with rich brown scales and the fore wings are thickly mottled 

 with the same on a background of light gray; at the base of the fore 

 wings' along the costa the brown scales are thicker; outer edge of the 

 wing with a rich brown line ; fringe of medium length, purphsh-brown in 

 color. Hind wings a light gray with a brown median line and sparse 

 brown mottling on the outer third, outer border of the wing brown; apical 

 portion of the fringe concolorous with that of the fore wing, the remainder 

 of the fringe nearly white. Beneath, the fore wings are nearly as above 

 but with a more pronounced discal spot; hind wings beneath with a dis- 

 tinct reniform discal spot ; palpi beneath and legs clothed with white 



scales. 



Its Enemies. 



It was not possible to find anywhere the number of larvae and pupae 

 one might expect in the vicinity of the food-plant after the cater- 

 pillars had begun to leave their nests; it is quite likely that many of them 



