STATE AGRICULTURAL SOCIETY. 
457 
BARBEKHY-APIII9. DESCRIPTION OF WHEN MATURED. , 
antennae and honey-tubes are white, and the antennae are about half the 
length of the body. 
The wingless female, the single individual unlike the rest of the group, 
coincides with the mature larva in size, and in all the details above stated, 
except only the color of the body. In this it differs notably. Nor is it 
constant in its colors, different females being unlike each other, and the 
same female sometimes changing very sensibly in a short time. Some of 
these females are bright orange-red with all the middle portion of the back 
dull pale-green, frequently with two orange-red streaks on this pale ground, 
the streaks widening backward and uniting with the orange-red of the 
border. Others are very dull red with the middle of the back smoky, the 
sutures and a line along the middle of the back being greenish-white. 
The female is more plump and less flattened than the larva. In some spec¬ 
imens the feet and apical half of the antennae are blackish, and the honey- 
tubes smoky with only their bases greenish-white. They are slighly shorter 
than the space from their bases to the tip. A short conical tail, little longer 
than thick, is protruded from the apex of the abdomen. The beak, which 
is white with its tip sometimes smoky, reaches to the middle pair of legs. 
Such are the characters presented by these lice when they are first begin¬ 
ning to appear upon the leaves in May. As noticed at later periods of the 
season, the larvce are mostly pale yellow, and the females pale, both being 
marked upon the back with a dark colored elliptic ring, formed by a stripe 
along each side towards the outer margin and extending from the head to 
near- the tip, these stripes being black in the mature insect and deep green 
in the larva, and cut across by slender pale lines at the sutures. 
The first season that these lice appeared, winged individuals were often 
sought for but none were found, until the month of November, when they 
became quite numerous. They were noticed at that time as being black 
and shining, with the breast and abdomen pale yellow, the latter black at 
the tip, and the legs dusky. When they were about disappearing eight 
years afterwards, winged specimens were found in plenty among them in 
May and June. These were fourteen hundredths of an inch in length to the 
,end of their closed wings, pale greenish-yellow with the top of the thorax 
slightly dusky, the antennae black except at their bases, the legs dusky 
towards their tips, the wings transparent with the stigma salt-white and 
the veins blackish. The relative distances between the veins of the wings, 
and the aberations from their normal arrangement which were observed 
are as follows: 
Second voin about twico as far from the first at its tip as at its base, and rather farther from 
tho third at its tip than at its base; its base equi-distant between the first and third yeius. 
First fork at tip most commonly much nearer the tip of tho second fork than of the third vein, 
and oftenest as near to tho third vein as this is to the second. Second fork much nearer to tho 
first fork than to the fourth vein. Fourth vein strongly curved, becoming straight towards its 
tip, commonly somewhat nearer the second fork than to the tip of tho rib voin. 
Varioty a. Tip of third vein nearer tho first fork than to tho second vein. Common. 
Vuriety b. Second vein in the left wing with a short fork near its middle. 
Varioty c. Seoond fork wanting in the left wing. 
Variety d. Seoond fork in the left wing wanting, and second vein with a short fork near tho 
middle. 
. Variety e. Second fork in tho left wing wanting, and second voin in the right wing forked 
10 the middle. 
Variety/. Tip of tho third vein nearer tho seoond voin than to tho first fork. 
