301 



tuft of dark brown scales at the outer end on both costal and inner margins. 

 Some specimens are darker and of a duller shade of brown. Expanse 16-20 mm. 

 Distribution: Quebec to New Jersey, west to Manitoba, South 

 Dakota and Mo. Fernald arlds Texas but we are unable to verify 

 this. The specimens which we have were taken in June with the 

 exception of a single one without locality which bears an August date 

 label. There are Mo. specimens in the Cornell collection dated May, 

 and New York specimens dated July. The species was described from 

 New York, and a reared specimen in coll. Fernald among Fitch's 

 material is probably the type, though it does not bear Fernald's type 

 label. 



The early stages have been considered in a number of papers. 

 Riley's third report gives a good account of the habits of the insect, 

 and both this and Saunder's "Insects Injurious to Fruits" describe 

 the early stages in part. Dyar's paper in Psyche, vol. VII, and 

 Fracker's are the only papers known to us which give any information 

 of value on the structure of the larva. Fernald's monograph of the 

 family contains the following description of larva and pupa : 



"Larva. — Length, about 12 mm. Head yellow, with the mouth parts brown. 

 Body pale greenish yellow, deeply constricted between the segments. Each 

 segment has a transverse row of ten moderately sized tubercles, from each of 

 which arises a cluster of from six to twelve long, whitish, diverging hairs, 

 besides which, scattered over the surface, arc short hairs which are enlarged 

 at the tip. Legs yellow, long and slender. 



"Pupa. — Length, 11 mm. Diameter, 2 mm. Front obliquely truncated, 

 with two irregular ridges extending up over the truncate part and along the 

 dorsum on either side of the median line, diverging toward the meta-thorax, 

 where they terminate in a pair of flattened, sharp-pointed projections, about 

 as high as two-thirds of the diameter of the pupa. The ridges are higher, and 

 toothed on the top of each segment. On the first five abdominal segments 

 there is a row of short spines on each side, in line with the abdominal projec- 

 tions. These spines incline forward, and on the posterior side is a small tooth 

 and two short diverging club-shaped bristles. The pupae attach themselves by 

 a cluster of fine hooks at the end of the abdomen to a button of silk spun by 

 the caterpillar before pupating. The pupal stage lasts about a week." 



2. Pteropiigrits tenuidactvlus Fitch. PI. XLI, fig. 5. PI. XLIX, 

 fig. 1. 



Ptcrophorus tcnuidactylus Fitch, Trans. N. Y. Agr. Soc. XIV, 848, 1854. 

 Id., 1st Rept. Ent. N. Y. 144, 1854. 

 Morris, Cat. Lep. N. A. 54. 1860. 

 Walker, List Lep. Ins. B. M. XXX, 940, 1864. 



