NATURAL SCIENCES OF PHILADELPHIA. 205 



Chilo Zincken. 

 C. longirostrallu s. Labial palpi, head and thorax ochreous white. 

 Fore wings pale yellowish-white, with a fuscous line from the tip to the inner 

 margin. Hind wings pale ochreous white. Abdomen tufted at the tip. 



C. melinellus . Ochreous yellow. Fore wings with a pale fuscous 

 streak along the middle of the fold, extended nearly to the tip, and a faint 

 oblique line of the same hue, from the tip, not extended to the hind margin. 

 Hind wings pale yellowish-white. Abdomen tufted. 



C. aquilellus. Dark fuscous. Fore wings with an ochreous streak 

 along the submedian nervure and its nervules, and those beneath likewise 

 touched with the same hue. Hind wings yellowish fuscous. 



PHYCITES. 

 Nephopteryx Hiibner. 



N. undulatella . Labial palpi, head and thorax grayish fuscous. Fore 

 wings grayish fuscous, with an augulated white line crossing the disk, some- 

 times obsolete above the fold, margined with dark brownish, and a subtermi- 

 nal line of the same hue dark margined on both sides. At the end of the 

 disk is a short blackish transverse line, slightly margined exteriorly with 

 whitish. Hinder margin tipped with blackish ; cilia grayish fuscous. Hind 

 wings grayish testaceous ; cilia paler. 



Penna., Canada and Mass. From Dr. Chas. Girard, Washington, D. C. 



Early in October, I found pupse of this insect at Niagara Falls, on the Ca- 

 nada side, under shelter of loosened portions of the bark of the American 

 Elm. They were enclosed in a cocoon of silk, mixed with particles of bark. 

 On the same tree I took a number of larvae which were descending the trunk 

 to undergo pupation. I did not, however, obtain imagos from any of the 

 specimens. The body was nearly uniform in diameter, with the ordinary 

 number of feet. Head as broad as the body and dark green. Body dark 

 green, between the segments yellowish and dotted with yellow ; first rings 

 with two black dots on the sides. 



N.? u lmi-arr o s o r ella . Female. Grayish-fuscous. Fore wings with 

 a slender, dark fuscous angulated line, edged on the costa internally by a pale 

 grayish spot, and on the inner margin externally by another of the same hue. 

 The subterminal line pale gray, dark margined internally. Hind wings pale 

 brownish, darker on the margin. 



The larva is found on the American elm in August. The head is pale 

 brown, dotted with dark brown. The body dark green, with a dorsal, double 

 line of pale green patches, and a slight subdorsal and stigmatal line of the 

 same hue. On the 1st, 2d, 4th, 5th and 10th rings, are brown subdorsal 

 points. It weaves a web on the surface of the leaves, feeding beneath it. 

 The pupa is contained in a web between united leaves, in the vivarium. It 

 becomes a pupa about the middle of August, and an imago about twelve or 

 fourteen days after transformation. 



Pempelia? Hiibner. 



Male. Labial palpi moderately long, scarcely exceeding the vertex ; Jirst and 

 second joints thick, third extremely short and slender. Maxillary palpi with a 

 short pencil of hairs. Tongue nearly as long as the thorax beneath: scaled at 

 base. 



P.? virgatella . Brownish luteous. Fore wings varied with pale gray- 

 ish toward the base and tip, with dull pale reddish at the base and middle of 

 inner margin ; on the middle of the costa is a blackish blotch, containing a 

 short line of the same hue, and opposite, an angulated whitish line, with few 

 black spots exterior to the costal line ; a blotch of the same hue towards the 



I860.] 



