ey en ee 
39 
Imago.—Antenne curved over the basal joint, the latter with a 
scaly tuft; labial palpi compressed, with a long end joint; maxillary 
palpi small and filiform; anterior wing with 11 veins, branches 4 and 5 
not being stalked; ground color varying from grayish brown to grayish 
black; crossed by two equidistant irregularly pinnated grayish bordered 
black lines; outer margin and basal half much deeper in color, with a 
black discocellular marking in the middle of the wing. Hind-wing 
dark gray with 8 veins, the first two branches being near each other; 
branches 3, 4, and 5 spring from a common stalk, which arises from a 
hind angle of the closed mid-cell. 
The thorax is of the same color as 
the anterior wing, abdomen much 
paler; hind tibiw large and com- 
pressed, with 4 spines. Wing ex- 
panse, 25™™; body length, 12™™; 
2 brooded in a year; first brood, 
middle of July, a second, late 
September to early October. 
Eggs.—They are placed just 
under a small twig where therain 
does not directly strike, protected 
safely by a white silk web. The 
eggs under that cover are about 
twenty in number, oblong in 
shape, both ends being a little 
narrower; very flat; black in 
color; 7™™ by 6™™ In size. 
The species hibernates in this 
state. 
Larva.—The esses hatch in Fig. 14.—Nephopteryz rubrizonella: a, moth; b, larva; 
early June, at the time when c, pupa in situ in pear; d, twig showing egg mass 
the pear attains the size of a above at right—natural size (from drawing by 
cherry. The larve at first spin pear 
much silken thread on the branches and then make their way to differ- 
ent fruits near by. Injured fruits are almost always attached by silken 
threads at that place of the branch where a fruit stalk hangs. At first 
pale white in color, with black head and blackish first segment, the 
larvee gradually change in color to grayish yellow, and when fully mature 
they take a pinkish-brown color, and measure about 20" in length. 
They are spindle-shaped in general, and consist of 12 segments, of 
which the sixth, the seventh, and the eighth are longest; head brown- 
ish black; the upper part of the second segment with two pitehy-black 
horny spots; legs show nothing unusual. They injure only the core of 
pears, and as they leave always a large blackish opening at their en- 
trance, it is easy to detect their presence. The larval stage lasts three 
weeks or more; the specimens which I reared made cocoons June 30, 
Food plant, only pear. 
