468 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



about the middle of August; one pupated July 27 and the imago issued 

 about August 8. 



Larva. — Body green ; piliferous spots concolorous ; spiracles ringed with pale 

 brown ; cervical shield green, edged at the sides and behind with black ; that on the 

 sides sometimes wanting ; head mottled black and white, anal plate unmarked. 

 Length, 16"'° (.64-inch). Coquillett (Papilio, iii, p. 101). 



46. Pyralid ? larva. 

 (Larva, Plate iv, figs. 10, 10a. ) 



This caterpillar lives within a large roomy case, made by loosely 

 folding over and sewing together a part of an aspen leaf. 



Larva. — Body stout ; head peculiar, large, and broad ; a black line extending 

 around the side to the labrum ; on the vertex a double-curved or looped black line, 

 forming a rude double curve on each side, with spots forming a median double black 

 line; a large greenish cervical shield, edged posteriorly with black ; ten abdominal 

 legs ; body broad and square at end ; body and legs pale green ; the piliferous warts 

 minute and indistinct. Length, 15°>™. 



47.- Gelechia rhoifructella Clemens. 



The larva lives on the poplar in a leaf rolled lengthwise and closed 

 at each end. One pupated June 12 and disclosed the moth June 30 

 (Coquillet). According to Chambers it also lives on the fruit racemes 

 of the sumac. 



Larva. — Body green ; piliferous spots polished black ; cervical shield blackish ; 

 anal plate unmarked; head yellowish-brown, shaded with blackish. Length, 16 ™'" 

 (.64-inch). (Papilio, iii, 99.) 



48. Lithocolletis populiella Chambers. 



I have bred a few species from small tentiform mines on the under 

 side of leaves of the silver-leaf poplar, which, though very distinct from 

 argentinotella Clem, and L. fitchella Clem., I place in the same group 

 with them. It is perhaps nearer to L. carpinicolella than to any of the 

 other species figured in the Nat. Hist. Ins. (Chambers). 



Moth. — Palpi, head,' tuft, antenuiB, under surface of thorax, legs, and abdomen pure 

 snowy white; upper surface of abdomen and forewings pale golden ; there are three 

 white longitudinal streaks ou the thorax (one median, and continuous with a dorso- 

 basal white streak on the wings, the other two passing over the tegulae and continu- 

 ous v.ith a median basal white streak on the wings); there is also a costo-basal white 

 streak on the forewings, and these three basal ring streaks are of about equal length, 

 and less than one-fourth of the length of the wings. Immediately behind the dorso- 

 basal streak, and scarcely distinct from it (probably sometimes confluent with it), 

 is the first dorsal streak, which approaches a square form, and is dark-margined be- 

 fore and above. Almost opposite to this dorsal streak, but a little behind it, is the 

 first costal streak; it is oblique, not pointed, and is dark-margined before. The 

 second costal and second dorsal are opposite each other, the costal one being the 

 larger of the two, triangular and dark-margined before. The third costal and third 

 dorsal are nearly opposite, the costal being, perhaps, a little farther back, and being 

 larger than the dorsal, and larger also than the second costal ; both are dark- 

 margined before. There are only the three dorsal streaks. The fourth costal is just 



