Schizoneura pcinicola, Thos. 
[Plate IV, Fig. 4.1 
This species, first described by Dr. Thomas in 1879, is extremely 
mdant and widely distributed upon roots of Panicum and Setaria 
fields of corn, and occurred likewise, not uncommonly, upon roots 
sorghum at Champaign, in July. I have as yet found it upon no 
ier plants, except in a single instance, where two specimens were 
;en upon the roots of corn in June. The decided preference of 
! species for grass roots is however very clear, since where the 
•ts of corn and grass were closely intertwined the Schizoneura has 
;n invariably found upon the latter only. 
DESCRIPTION. 
Vingless female .—The body is very broadly convex, sometimes 
)orbicular. The antennae reach about to the end of the thorax, 
j rather thick and heavy, and not tapering. The apical joint is 
;htly thickened, the third joint longest, the fifth rather longer 
n the fourth, and slightly gibbous on one side at the tip. The 
tk is long, reaching fully to the hind coxae. The general color is 
ite, or a very pale yellowish. The head and thorax and about 
>-thirds of the mesotliorax are dusky, as are also a transverse 
id upon the metathorax, one upon the first segment of the abdo- 
n, heavy transverse bands upon the sixth and seventh segments 
the abdomen, irregular patches at the tip of the body, quadrate 
tches on the sides of the abdomen and a few scattered dorsal 
cks. The coxae and legs are dusky, and there is a quadrate patch 
black beneath the vent, and one upon the sides of the metathorax, 
e two terminal joints of the rostrum are dusky, and a dusky cir- 
ar patch surrounds its base. The two basal joints of the antennae 
also dusky, and the two terminal ones are nearly black. The 
s are red, with a black postocular tubercle. The antennae are 
ise throughout, the hairs being longer toward the tip. The head 
l whole body are also pilose, with longer hairs at the tip of the 
lomen. 
Vinged female .—This is described by Dr. Thomas as follows: 
he front wings with the third discoidal vein once forked; third 
n obsolete at base; first and second veins arising very near each 
er; stigma short, rounded behind; fourth vein nearly straight; 
tal bent outward next to the base, leaving a rather wide space 
ween it and the sub-costal. Antennae short, reaching about to 
base of the front wing; slightly hairy; third joint rather longer 
n the fourth and fifth united; sixth slightly longer than the fifth, 
h a very short, indistinct, blunt spur at the tip. Beak rather 
g, reaching nearly to the hind coxae, slightly hairy. Eyes present 
l of the usual size or nearly so.” 
?o this description I may add that the head and thorax are black, 
abdomen pale, with imperfect dusky bands on the first and 
ond segments, a quadrate dusky discal blotch, two terminal dusky 
ids, a series of quadrate dusky lateral spots, and two rows of 
ck specks between these and the discal blotch. The antennae are 
iky throughout, sparsely pilose but not scabrous, 0.57 mm. long; 
legs are black; and the tip of the abdomen and the band upon 
