IOWA ACADEMY OP SCIENCES. 
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are light colored; sometimes the second tarsal joint and the 
claws brownish; the femora slightly tinged with brownish, the 
posterior ones sometimes having a faint brownish band near the 
base. 
The wings have the typical venation for Aphalara. The 
brownish markings are as follows: A black spot at the anal 
angle of the clavns; a slight one at the origin of the cubitus; 
three darker ones almost in a straight line across the wing, the 
anterior one near the middle of the descoidal portion of sub- 
costa, the middle one a little beyond the center of the petiolus 
cubitii, and the third near the top of the clavus; a black spot 
on the pterostigma and the union of the radius and each of the 
four furcals with the marginal vein; a clouded spot surround- 
ing the first f ureal; an oblique somewhat irregular band extend- 
ing from the end of the first marginal cell to near the end of the 
radial cell, being most dense in these two cells, and quite thin 
and scattered in the cubital and descoidal cells; at the end of 
third and fourth furcals is a clouded portion which is more or 
less dense across the second marginal cell. The oblique apical 
band varies as to continuity. In some cases it is broken up 
into three or four separate parts and more scattered. The 
abdomen is uniformly dark colored dorsally; the ovipositor 
light brown and the tip furnished with numerous radiating 
hairs. The lateral margins are light colored, being the same 
color as the pleurum in the distended abdomen. The anus 
usually shows a fine cottony substance which may or may not 
collect in the form of a little mass as in Aphalara polygoni, 
depending on when the specimen was taken, how mounted, and 
its condition before mounting. On the posterior margin of the 
first visible ventral segment is a distinct white band, widest in 
the middle where it is arched and nearly reaches the middle of 
the segment. The two succeeding ones are more uniformly 
colored, only being slightly lighter in the middle. The fourth 
is light colored, only having a dark portion between the light 
colored margin and the central portion, and extends backward 
under the ventral plate, thus giving the ovipositor the appear- 
ance of being retracted, only the distal half being visible from 
below. Usually there are fine white lines separating the 
abdominal segments. These represent the more distinct light 
colored tissue between the segments which in life are distended, 
giving the abdomen a plump appearance and showing the three 
divisions, tergite, pleurite and sternite. In the female, in 
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