57 
“Type Loc. Rhode Island. (Seekonk.) Coll. Mrs. S. W. Bridgham.” 
G.& R. 
Larva. 
“(before last moult). Head shining black. Body pale yellowish, variegated 
with black; a black dorsal line, interrupted on the summits of the posterior 
segments. Long silky white hairs, with a few black ones arise from the sub- 
ventral warts. The lateral row (row III) furnishes shorter bristly yellowish 
hairs; but on joints 2 and 13 gives a long pencil of black hairs. A few black 
hairs also overhang the head and extend from joint 13. From the subdorsal 
warts on joints 2-4, 8-11 and 13 arise tufts of plumed white hairs appearing 
‘mouldy’ on the ends, intermixed with bristly yellow hairs. On joints 5, 6, 7, 
and 12 the warts of rows I and II bear a series of large square black tufts, 
mixed with white plumed hairs especially at the sides of the tufts, where also 
a few bristly yellow hairs occur. The tuft on joint is much less black than the 
others. Dorsally on joints 10 and 11 a median whitish retractile tubercle with 
flattened top. 
“Last stage. Head black, whitish above the mouth. Body pale whitish 
with a yellowish tinge, shaded, marked diffusely with black; a dorsal and a 
stigmatal band indicated. Two long black pencils of hairs on joints 2 and 13 
as in the previous stage. Lateral hairs long, dirty whitish mixed with a few 
black ones. Dorsal tufts as before except that those on joints 5-8 are now 
large, square, brown ones, mixed at the sides with white plumed hairs; the 
tuft on joint 12 still remaining black as previously and contrasting with the 
others. 
“Cocoon composed of hair and silk. 
“Mature larva on Hickory (Carya) at Rhinebeck, N. Y., June 6, 1887, and 
young ones on oak (Quercus) Aug. 9, 1887.” Dyar. 
Fresh bred specimens, especially in the ¢ sex, show a strong 
olive-green suffusion. In the ¢’s the yellow-brown basal patch is 
apparently quite variable; in a series of 6 6’s before us from New 
Brighton, Pa., 2 ¢’s are typical, a third has the yellow suffused over 
the whole basal area, and the remainder show the merest traces of 
this color. (PI. I, Figs. 3,5). A ¢ in the Strecker Coll. labelled 
‘Md.’ is similar, with the addition of a black submedian dash. These 
specimens present quite a distinct appearance from the typical form, 
being rougher in squammtion, approaching the pine-feeding forms in 
this respect. Collectors in these localities would do well to study the 
early stages as the possibility of a distinct species is by no means im- 
probable. 
The t. a. line in ¢ is very irregular and jagged with usually a 
prominent outcurve just above inner margin; at this point the two lines 
are often extremely close together, but their relative position is slightly 
variable. The subterminal brown band is not so prominent as in the 
