170 
ovate, very convex. ' Apparently without eyes, at least I failed to find 
them with a pretty high power, yet Mr. Pergande appears to have 
found specimens in which they were minutely represented, as shown 
in the figure drawn by him. Beak very short, reaching but little be¬ 
yond the first coxie. Legs unusually short, the hind pair being scarcely 
longer than the others. Without honey-tubes or anything representing 
them. Divisions between the segments not well marked. Uniform 
orange red or reddish-yellow; beak tipped with fuscous. Length not 
more than about .04 of an inch. 
Found during October, by Mr. T. II. Pergande. at St. Louis Mo., on 
the roots of Panicum glabrum. 
This is probably a species of Tychea , which has, according to Koch, 
six-jointed antennse, but according to Passerini, only five. 
SPECIES OF UNCERTAIN POSITION 7 . 
The following species described by Dr. Fitch have been placed in 
Callipterus , but as he asserts that the wings lie flat in repose they 
cannot belong to that genus. As I am unacquainted with them 1 have 
not attempted to assign them to their proper position. 
Aphis caryella. Fitch. 
Callipterus caryellus . Fitch. 
I 
Pale yellow with white antennae which are alternated with black 
rings, the wings transparent and without spots, their veins slender-and 
pale yellow 7 , the legs yellowish white to their ends. Length 0.12 to 
the tips of the wings. The abdomen is depressed, egg-shaped, its apex 
slightly narrow r ed and elongated. The antennae are longer than the 
body, tapering, seven jointed; two basal joints as broad as long, twice 
the diameter of the following joints, third joint longest, slightly thicker 
towards its base; fourth and fifth joints rather shorter than the third, 
cylindric, two last joints together about equaling the fifth in length, 
the sixth swelled at its tip into a long oval knob, the seventh more 
slender but not capillary, shorter than the sixth; a broad black band 
at the apex of the third and each of the three following joints. First 
vein of the fore wings straight and almost transverse, second vein 
bent near its base; running first towards the apex and then turning 
rather abruptly and continuing straight to the inner margin; more 
than twice as far from the first at tip as at base, third vein arising 
from the stigma near its anterior end; and not from the rib-vein foi- 
ward of the stigma, as it does in the aphides generally, except those 
petaining to this gr >up, its base and its apex ab nit the same distance 
from the second vein that it is from the first, forking rather forward 
of its middle; strongly bent at this point; and from lienee to its tip 
parallel with the third vein or but slightly diverging from it; its tip 
a third nearer that of the third vein than this is to the second; second 
fork nearer the fourth vein at tip than to the first fork, the triangular 
cell between it and the first fork with its three sides equal; fourth 
