84 Journal New York Entomological Society. [Vol. xiv. 



The larva has been well described and figured by Hart. He says 

 that the favorite home of the species is among the floating leaves of 

 Potamogeton nutans. The amber-colored eggs are laid in a long band 

 just within the margin, on the lower surface, of some broad floating 

 leaf. They are closely placed in a single layer, in rows running 

 parallel to the margin, the band being about 3 mm. wide and includ- 

 ing usually five or six rows of eggs. The band is usually an inch or 

 two long. The single egg is oval, flattened, one surface broadly 

 gummed to the leaf, the other finely longitudinally wrinkled, a longi- 

 tudinal elevated ridge at middle. Length .6 mm., width .4 mm. 

 Young larvae were obtained in July. The next day they had cut 

 out minute oval disks from the leaf and webbed these to its 

 lower surface. When a little older the larva cuts loose the 

 portion of leaf surface to which it has attached its shelter and is 

 thereafter found travelling about in a lens-shaped case. In larger 

 cases the posterior end is narrowed. Full grown larvae occurred in 

 August, but larvae could be found all Summer to October. The ima- 

 goes likewise occurred all the season, becoming commoner, most 

 abundant in August and September. The method of hibernation is 

 not stated. The young larva does not differ markedly from the 

 mature one. Mr. Hart says that in the first stage the setae are more 

 conspicuous and the ocelli are closely approximate, the lower three in 

 a solid oblong dash. 



Larva. Head rather small, light brownish yellow, sutures narrowly darker, 

 bordered on each side with whitish ; a lateral brown stripe from base of bead nearly 

 to ocelli; ocelli five, their pigment spots large and confluent. Body subcylindrical, 

 dirty whitish; cervical shield semicircular, bisected; tubercles of thorax indicated 

 by dark rings, abdominal ones indistinct ; spiracles of anterior abdominal segments 

 more distinct, remaining ones minute and inconspicuous ; ninth abdominal segment 

 above broadly retuse, tenth feebly impressed above at middle. Abdominal feet very 

 short, the hook-bearing area narrow, with two rows of light-colored hooks. No fila- 

 mentous gills, but aquatic in habit. 



Pupa. Rather rapidly narrowed behind, smooth, pale yellowish, wings and 

 head darker. Head with two small dehiscent black spine-like porrect setae on the 

 vertex. Spiracles of segments 2 to 4 round, elevated, reddish brown, with a pale 

 center and blackish ring ; very large, the anterior pair much smaller. Ventral sheath 

 reaching the seventh abdominal segment ; ninth with a sharp tooth each side above 

 lateral margin ; the last two segments grooved and impressed below. 



Nymphula nomophilalis, new species. 



Wings elongate, narrow, recalling Nomophila iioctnella D. & S. Fore wing 

 dark brown with a bronzy reflection, uniform in the female, lightened in two patches 



