together The terminal part of this joint is five times as long as 
ihe basal part. The 4th joint is but a little over haU as long a 8 
thp Rd the 5tli being two-thirds as long. lhe antennae are not 
pubescent if we except a few very short hairs on the three basal 
The lioney-tubes are slender, cylindrical, nearly straight, a little 
expanded at tip, and about .33 mm. long, being a little longer than 
the 5th joint of the antenme. 
The tail is short, .08 mm. in length, and is slightly pubescent. 
All about the head and on the terminal segments of the abdomen 
are scattered a few stout, short, capitate hairs, which, m the young, 
are likewise distributed over the hack. 
Dhe beak is of the usual length, barely attaining the hind coxae. 
Winqecl viviparous female. The general color of this form is green, 
the head, eyes, antennae, lobes of the meso- and metathorax, tibia 
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 metatliorax is dusky 
beneath. . , 
The body, antennae, honey-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 2.2o mm. 
Aphis, sp. 
[Plate X, Figs. 2—3.1 
In the latter part of September, 1882, an assistant, Mr. Garman 
observed upon strawberry plants near Centralia, numerousic lus 
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 It 
November, I found them still abundant at this place, and in the 
same situation as before. They were all wingless, and of vanou. 
sizes, but most of them adults, actively engaged m oyiposition th 
eggs, some black, some yellow and freshly laid, being abundant 
among them. 19 
In some fields near Centralia, half or two-thirds of the stools wen 
occupied by them; but I was not able at that late season, o 
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 au 
covered the following May, at which time, the plants were thoro g . 
searched for them. 
The same species was also found in the same situation upon p an 
near Normal, in the latter part of September, a fact showing tn 
wide distribution of this form. 
It was to this species that reference was made in my paper o 
insects affecting the strawberry, already cited; and the figure 
