THe BIoLOGY OF THE CHRYSOPIDAE 1359 
stages within the instar, a purplish red. The adults had the characters of 
harris except that the gradates and a few other veins were partly marked 
with brown, the wings were less acute than in harrisii, and the head coloration 
was not quite true to description. Knowing the possibility of variations in this 
species, the writer hesitates to describe it as a new species until further rearing 
has been done.) 
Pupa.—Cocoon silken, oblong spherical, white, closely woven but revealing 
the pupa within to a greater extent than in any other species seen; outer layer 
of cocoon fairly coarse, inner layer paper-like. Found commonly on maple 
leaves. Length of cocoon, 3.26 mm.; width, 3.07 mm. Pupa possessing facial 
characters of adult; body very light green in color. Total length of pupa, 4.03 
mm.; width of abdomen, 7 mm.; length of wing pads, 1.92 mm. 
Adult—vVery pale green to yellowish green, with ivory median stripe. Face 
yellowish white; a faded red stripe from each eye to mouth. Mouth parts and 
palpi yellowish. Basal joint of antenna yellowish gray, remainder of antenna 
light brownish. Legs yellowish gray, with a tinge of green in parts. Under 
side of body yellowish. Wings long, very slender; apex angular; gradate vein- 
lets light brown, costal veinlets brown at ends, many others wholly or in part 
light brown; longitudinal veins all very light green; veins of hind wings all 
very light green except gradates and costals. Total length of adult, 14 to 16 mm. 
(There is considerable variation in the adult, especially in color shades. 
The shape of the wings appears to be constant, likewise the brown color of the 
gradates. The body appears to vary in color from distinctly green to almost 
gray. 'The median dorsal stripe varies from yellowish to ivory white. The red 
stripe from the eyes to the mouth varies from distinct cherry red to pink.) 
Chrysopa plorabunda Fitch (fig. 161) 
1855 Chrysopa plorabunda. Fitch, First report, p. 88. 
1861 Chrysopa plorabunda. Hagen, Synopsis Neuroptera N. Amer., p. 221. 
1903 Chrysopa plorabunda. Banks, Trans. Amer. Ent. Soc., vol 29, p. 155. 
1907 Chrysopa plorabunda. Banks, Cat. neurop. ins., p. 28. 
Chrysopa plorabunda was found to be the most abundant species at 
Manhattan, Kansas, from early spring to late fall. It was found to be 
especially abundant in summer in alfalfa fields, in corn and sorghum 
fields, on willow, and on trees on which woolly aphids were plentiful. At 
Ithaca several specimens thought to be of this species were collected in 
a strawberry patch near a wood, but they were a darker green than the 
Kansas specimens. No eggs were deposited. At Charlottesville a third- 
instar larva was taken in sweeping a clover field on May 17, 1918. 
The life history does not differ from those of the oculata and 
rufilabris groups. It may be outlined as follows: egg stage, 3 to 5 
days; to first molt, 2 to 5 days; to second molt, 3 to 5 days; to spinning, 
3 to 8 days; to emergence, 8 to 20 days. 
EHgg.—Elongate elliptical, light green in color with a decided yellow tinge; 
stalk hyaline. Stalked as in other species and deposited singly or in irregular 
groups. Length of egg, 0.87 mm.; greatest diameter, 0.37 mm.; length of stalk, 
2.46 to 3.82 mm. 
