02 TFIE CANADIAN ENTOMOLOGIST. 



the lower wart, which is lappet shaped. Hair pale, the warts pale 

 brownish ; a faint dark dorsal line. 



Stage V. — Head brownish testaceous, width 1.2 mm. Body as 

 before, but browner, the mark on joint 7 smaller ; a fainter one on joint 1 1, 

 double. Third wart produced, its hair long and abundant, warts above 

 with the short hair black tipped. Body pale yellowish, a geminate dorsal 

 band of the ground colour, sides below this all faintly brown mottled 

 except at the extremities ; warts whitish with a brown ring at the base. 



Stage VI. — Head whitish, mottled with brown on the lobes, jaws 

 black ; width 1.8 mm. Dorsum broadly pale cream colour, a dark brown 

 subdorsal band, the pair joined by a transverse band on joints 7 and 1 1 , 

 mottled ; subventer pale. ^Vart iii papillose. Body flattened, squarish. 

 Hair pale, the short ones from the upper two warts brownish, those from 

 the third wart very long. 



Cocoon triangular, of little pieces of bark, as usual in the genus. 



Food plants oaks of various species. The larvae rest on the backs of 



the leaves. Rather common at Bellport, Long Island, N. Y. 



N. fuscula, Grote. 



The larva is unknown. 



JV. viintisciila, Zeller. 



The larva is unknown. 



N. ovilla, Grote. 



The larva lives on oak, hiding on the bark. See Psyche, VI., no. 

 N. clethrce, n. sp. 



Very close to ovilla, but a bluer gray, less ashen. The brown tufts 

 do not rest on the costa, the lines are narrow and dotted, especially the 

 t--P- ; ground colour uniform, bluish-ashen ; thorax concolorous, collar 

 posteriorly banded with brown ; abdomen and hind wings paler, the latter 

 with a faint discal dot and lighter towards the base, all as in ovi/la, 

 from which the only distinct difference is the general colour. Expanse 

 16.5 mm. One male, three females. Bellport, N. Y. 



Types in the U. S. National Museum (Type No. 41 12) and in the 

 British Museum. 



Egg. — Flattened especially in a large area above, outline circular but 

 distinctly elongate in one diameter; sides 25ribbed, a waved line on the 

 surface of each rib, with fine parallel cross strise, making elongate rectan- 

 gular cells ; the flattened vertex is finely reticulate. Dull, translucent, 

 waxy white ; size .4 and .5 mm., .3 mm. high. Laid on the backs of the 

 older leaves close to a vein. 



