62 ENTOMOLOGICAL NEWS [Mar., '19 



avoids this danger by crawling up the under or abaxial side 

 of the leaf petiole and by attacking the leaf from beneath. 

 When young the larva is pale and feeds on the tips of un- 

 folded leaves and on the central bud. As it grows older it be- 

 comes greenish and eats mature leaves, invariably approach- 

 ing them from the under side. When larvae were placed on 

 the upper or adaxial side of the petiole, they immediately 

 crawled around to the opposite side. This was found to be 

 due to the presence of epidermal hairs on the adaxial surface 

 of the petiole. The abaxial surface of the petiole and the 

 under side of the leaf blade are free from these hairs. 



The following summer, 19 16, it was accidentally discovered 

 that when the larvae reached a length of about 15 mm. they 

 changed their diet, giving up Drosera for the cranberry, Vac- 

 cinitim macrocarpon. 



The mature larva is 16 mm. long when extended, 12 mm. long when 

 contracted and" 2 mm. thick. It is reddish brown on the back and 

 pale yellow-green toward the front on the ventral surface. There is 

 a well develoned white dorsal stripe between two parallel black lines. 

 On either side there are three more dark lines. The head is shiny and 

 very dark honey yellow in color. The true legs are of the same color 

 a<^ the besd. ]v\^ rot shiny. There are four pairs of transparent false 

 legs, that are dark at the tip. The anal prolegs are of the same color 

 as the dorsal side. 



A single mature larva was obtained, which was taken care 

 of and reared by Dr. W. E. Britton at the Connecticut Agri- 

 cultural Experiment Station in New Haven. The larva pu- 

 pated between March i and 20. IQT7. and a male m^oth emerg- 

 ed May 8, 191 7. It was identified by Dr. William Barnes as 

 Bpipsilia monochromatea Morr.^ This form was originally 

 described by Morrison^ as Agrotis monochromatea, and is listed 

 as Pachnobia monoclwomatea Morr. by Dyar and Smith. ^ It 



^ W. Barnes and J. McDunnough, 1917. Check list of the Lepidoptera 

 of North America, No. 1475. Decatur. 



^ H. K. Morrison, 1874. Description of new Noctuidae. Proc. Bos. 

 Soc. Nat. Hist. 17. p. 165. 



'^H. G. Dyar, 1902. A list of North American Lepidoptera, p. 131, 

 Washington. 



