THE Brouocy oF THE CHRYSOPIDAE 1363 
oak and pine trees. They are readily found, for the little packet of 
debris moving over a green leaf is rather conspicuous. The best success 
in finding them was attained on early morning trips, since they appear 
to be more active at such hours. During the summer of 1918 they were 
most numerous during the month of September, but in 1919 they were 
most plentiful in the latter part of July, when all stages of the larvae 
were readily found. Adults were taken at Charlottesville practically 
all summer by beating oak branches in rather dense woods. The females 
have so far uniformly refused to oviposit in captivity. This species was 
never taken at lghts. 
EHog.—tThe egg of CO. lineaticornis has not yet been seen, but singly deposited 
eggs of the usual stalked type are common on oak leaves and it is not unlikely 
that some may be of this species. 
First-instar larva—Conforms to description of third-instar larva except for 
size, number of setae on lateral tubercles, and dorsal head markings. Four 
convergent brown bands on dorsum of head; inner pair arising on inner side 
of antennae at bases of jaws, bending toward each other, and stopping together 
at about middle of head; outer pair arising between bases of antennae and 
eyes, extending parallel to inner pair, and stopping at posterior margin of head 
capsule; bands on posterior part of head, the invaginated part, very faint in 
color. Body gray, with some brownish or in some cases pinkish markings 
along sutures and in some specimens on each side of dorsal vessel; these mark- 
ings, as well as dorsal vessel, inconspicuous; two setae from each lateral tubercle 
except meso- and metathoracic pairs, which bear three each; stalks of lateral 
tubercles unusually long. Length of larva, 2.5 mm.; width of head, 0.37 mm.; 
length of jaws, 0.32 mm. 
(All first-instar larvae found, from the earliest to the end of the instar, have 
a well-defined packet of debris on their backs, identical with that of grown larvae 
except for size.) 
Second-instar larva.—Like third instar with a few exceptions, chiefly as to 
size. Head grayish, with the two pairs of convergent brown bands as described 
above, these differing from those in the first instar in that they are broader and 
their color is a reddish brown, a considerably increased intensity of color; jaws 
amber, with a reddish brown line on outside of each extending to ocellar fields; 
a broad reddish brown band from ocellar fields to first subsegment of prothorax, 
on side of head. Body gray, but with more of the pinkish tinge at sutures and 
along dorsal vessel, this color being undoubtedly contributed by the viscera of 
the larva; a distinct brownish patch below each thoracic tubercle and covering 
proximal ends of coxae. Legs gray except distal ends of tarsi, which are black. 
Length of larva, 3.5 mm.; width of head, 0.55 mm.; length of jaws, 0.35 mm. 
(The packet of debris is likewise a constant characteristic of this instar.) 
Third-instar larva.—Head of usual shape, gray in color; two pairs of black 
or very dark brown bands on dorsum; inner pair arising at bases of jaws and 
curving toward each other, becoming parallel but not merging, and stopping at 
middle of head; outer pair arising between bases of antennae and ocellar fields 
and extending, nearly parallel to inner pair, to posterior side of head capsule, 
about midway the color becoming less intense and the sides of the bands some- 
what irregular. (At the border of the prothorax in this species there is gen- 
