a aye ees 
—— 
a 2 
95 ’ 
mealy bug has also been collected by us May 20 at Mendota, and May 
21, 24, 28, 30, and 81 at Champaign, adults and young occurring on 
both corn and grass (pasture sod), usually with the above- mentioned 
ant in charge. June 5 it was found on June grass, behind the ensheath- 
ing part of the leaf, and the 6th and 16th on corn roots again, and the 
13th on the roots of young cocklebur in a corn field—here, also, in 
charge of Lasius alienus. Our remaining collections—one in July, three 
in August, and two in October—all contained adults, those for October 
either eggs or young also. October 20 a single reddish brown female, 
with legs of a similar color, was found on the outer surface of a corn- 
leaf sheath about four inches from the ground, surrounded by a little 
speck of flocculent material containing many eggs. October 25 adults 
and young—whether oviparous or viviparous does not appear from our 
notes—were taken together in old pasture ground near Champaign, 
attended by the two common ants mentioned above. No mates of this 
species have yet been recognized, 
DESCRIPTION, 
The body is oval, distinctly segmented, .07 of an inch long by .027 
inch wide, and .024 inch deep. 'The surface is covered iy a bluish 
bloom, and a waxy mass imbedding the bases of a cluster of long hairs 
commonly adheres to the anal extremity. The antenne are short, reach- 
ing to the cox of the first pair of legs, and distinetly eight- jointed, the 
first two joints thick (the first much the thicker) and about equal in 
length, the third as long as the second but narrower, the fourth the 
shortest of all, and about as wide as long. Hach of the following joints 
is slightly larger and longer than the preceding, and the eighth is 
enlarged to a kind of club, as wide as the second joint and very nearly 
as long as the sixth and seventh together. ‘he rostrum is very short, 
two- jointed, conical, projecting from between the bases of the first pair 
of legs. It is not as long as the femur, and its width is about half its 
length. ‘The maxillary filaments are four in number, and when extended 
reach the abdomen. ‘lhe eyes are placed upon the sides of the head at 
a distance behind the bases of the antenne about equal to the first joint 
of the latter. ‘They are black and simple, each consisting of a single 
ocellus. The tarsi are all 1-jointed, two thirds as long as the tibie, and 
tapering regularly to the elaw. ‘his is strongly curved, with a pair of 
slender capitate hairs, longer than the claw itself, springing from its 
base. ‘Che tibia and the femora are of about equal length; the antenne 
and legs are slightly hairy, and the body nearly smooth, only a few 
minute hairs being seattered over the surface. There are also a few 
long hairs at the tip of the abdomen. ‘The. latter is two-lobed and 
emarginate, with a small cauda at the base of the emargination, shghtly 
blackish distally. This emargination becomes a cup-shaped depression 
when seen from behind. 
Hgg.—Oval-oblong, subeylindrical, about twice as long as thick, 
brownish, surface smooth and shining. 
Length .80 mm., width .16 mm. 
