322 



green markings almost obsolete; there are, however, faint dorsal, sub- 

 dorsal and stigniatal lines ; legs and feet concoiorous or paler; stigmata 

 elliptical, white with dark rings. 



By July 15 maturity was attained ; an average larva was then 32 

 millimetres long, of the same general form, but the coloration was 

 darker and the ornamentation quite decided. In this respect there 

 were two easily distinguished varieties, a darker aud a lighter. The 

 subdorsal and stigmatal lines were reenforced by iuterrupted reddishs 

 brown stripes, or in the lighter ones by rows of reddish spots on the 

 posterior edges of the rings in place of the stripes ; in the darker ones the 

 dorsal lines often have the spots on either side. Several mature larvae 

 were seen without a trace of the red marks. The head at this stage 

 ■was strongly speckled with small brown spots. 



The cocoon consists of a delicate gauze of white silk through which 

 the pupa may be seen and to which it is firmly fastened by the cremas- 

 tral booklets. 



The pupa measures 14 millimetres ; the color dark brown and black; 

 there are no distinguishing features. Cocoons upon the leaves. 



The imago began to issue after a pupal period of 8 days. 



Those found in 1876, as before said, were feeding in the fruit ; in the 

 present instance they were invariably found devouring the leaves. In 

 case these are floating, they were found exposed on the upper surface; 

 in other cases they were beneath or concealed in folds. When at rest 

 or when disturbed the head is thrown round — usually to the left — op- 

 posite the middle of the body, so that the animal has the form of an 

 inverted J. 



It doubtless becomes necessary for larvfB feeding, as this one does, to 

 swim freely. That of Arzama ohliquata, for instance, swims powerfully 

 by horizontal undulations of its body, while that of Eustrotia caduca 

 swims strongly, but by an entirely different motion, i. e., the posterior 

 third of the body is bent downwards, like the tail of a crayfish, then 

 quickly pushed backward, thus kicking the water and driving itself 

 ahead by jerks. 



A LIST OF SPHINGID^ AND BOMBYCID^ TAKEN BY ELECTRIC 

 LAMPS AT POUGHKEEPSIE, N. Y. 



By Harrison G. Dyar. 



The specimens enumerated in the following list'were taken from the 

 globes of part of the electric lamps at Poughkee])sie at intervals of 

 about a week during the summer of 1890, from June 14 to August 14, 

 inclusive. In many instances the moths were left in the globes from 

 after one visit to the next, so that the numbers given under the head- 

 ing of a certain day often include those of the preceding 6 or 7 days. 

 Before June 14 no large number of specimens were caught, and after 



