3!) 
Imacjo. — Antoima' curved over tlic basal Joint, tlie latter with a 
scaly tuft; labial palpi compressed, with a lon<;- end Joint; niaxillaiy 
l)al])i small and tilitbrm; anterior win<»- with 11 veins, branches 1 and 5 
notbein^- stalked; ground color varying Irom <;rayish brown to grayish 
black; crossed by two eipiidistant irregularly ])innated grayish boidc^i-ed 
black lines; outer margin and basal half much deei)er 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 o, 4, and T) spring from 
hind angle of the closed mid-cell. 
The thorax is of the same color as 
the anterior wing, abdomen much 
paler; hind tibia' large and com- 
pressed, with 4 spines. Wing ex- 
a common stalk, whic^h 
arises from 
pause, 25">'"; body length, 12"""; 
2 brooded in a year; first brood, 
middle of July, a second, late 
Sept(Hnber to early October. 
Fjiigs. — Tliey are placed Just 
under a small twig wdiere the raiu 
does not directly strike, protected 
safely by a Avhite 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 (>"'"' in size. 
The species hiberiiates in this 
state. 
Larva. — The eggs hatch in 
early June, at the time when 
the pear attains the size of a 
cherry. The larva^ at first spin 
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 
larvae 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 si)indle-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 pitchy-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. 
Fig, 14. — Nephopteryx rtibrizonella : a, moth ; b, larva; 
c, pupa in sitti in poar; d, twig showing cg^ mass 
above at right — natural size (from drawing hy 
author). 
