102 
together. The terminal part of this joint is five times as long as 
the basal part. The 4th joint is but a little over half as long as 
the 8d, the 5th being two-thirds as long. The antenne are not 
pubescent, if we except a few very short hairs on the three basal 
joints. 
The honey-tubes are slender, cylindrical, nearly straight, a little 
expanded at tip, and about .838 mm. long, being a little longer than 
the 5th joint of the antenne. 
The tail is short, .08 mm. in length, and is shghtly pubescent. 
All about the head and on the terminal segments of the abdomen 
are scattered a few stout, short, capitate hairs, which, in the young, 
are likewise distributed over the back. 
The beak is of the usual length, barely attaining the hind coxe. 
Winged viviparous female. The general color of this form is green, 
the head, eyes, antennz, lobes of the meso- and metathorax, tibie 
and tarsi being black, and the edges of the abdomen and a band 
along its middle, dusky. 
The thighs are pale; the stigma and the longitudinal veins of the 
wings colorless, the other veins dark. The metathorax is dusky 
beneath. 
The body, antenne, honéy-tubes and tail measure about as in the 
wingless female, the proportions of the antennal articles being also 
the same. The wings are large, expanding 2.25 mm. 
Aphis, sp. 
[Plate X, Figs. 2—3.] 
In the latter part of September, 1882, an assistant, Mr. Garman, 
observed upon strawberry plants near Centralia, numerous clusters 
of dark green plant-lice, gathered on the crowns and between the 
bases of the roots, at and just beneath the surface of the earth. In 
November, I found them still abundant at this place, and in the 
same situation as before. They were all wingless, and of various 
sizes, but most of them adults, actively engaged in oviposition; the 
eges, some black, some yellow and freshly laid, being abundant 
among them. 
In some fields near Centralia, half or two-thirds of the stools were 
occupied by them; but I was not able at that late season, to esti- 
mate the damage due to them. 
No plant-lice of any species were seen upon the strawberry else-- 
where in Southern Illinois, nor have any been seen there since. 
Even in these very same fields, not a louse of any sort was dis- 
covered the following May, at which time the plants were thoroughly 
searched for them. 
The same species was also found in the same situation upon plants 
near Normal, in the latter part of September, a fact showing the 
wide distribution of this form. 
_ It was to this species that reference was made in my paper on 
insects affecting the strawberry, already cited; and the figure there 
SS  — Se 
