1350 Roger C. SmirH 
The life history as observed in some specimens may be summarized 
as fotlows: 
Number 0_| Date egg | Date of Date of Date of |Datecocoon| Date adult 
specimen | was laid | hatching | first molt |second molt}was spun | emerged 
(al Sept. 9 | Sept. 15 Sept. 19 | Sept. 24 | Oct. 8 Wintered 
72 Sept. 7 | Sept. 11 Sept. 15 | Sept. 20 Sept. 28 Wintered 
73 Sept. 6 Sept. 10 Sept. 14 | Sept. 18 | Oct. 3 Wintered 
Egg.—Stalked, laid singly; oftenest found on trees (especially maple) and 
shrubs. Smaller than most chrysopid eggs, very light green to yellowish green. 
Chorion unsculptured. Length of eggs, 0.84 mm.; width, 0.38 mm.; length of 
stalk, 4.4 to 4.6 mm. 
First-instar larva.—Very pale, somewhat translucent. Contractions of 
pharynx observable as larva feeds, appearing as an hourglass-shaped structure 
in dorsal view, slightly darkened; later four narrow bands on dorsum of head, 
converging behind. Body unmarked except anterior of abdomen, which is 
darker, due to food. Lateral tubercles prominent; setae long and stout, two on 
each prothoracic tubercle, three on each meso- and metathoracic lateral 
tubercle. No setae on first abdominal segment, which is also without tuber- 
cles; on each of lateral tubercles 2 to 7 inclusive, two setae, a large upper and 
a small lower one; two pairs of dorsal papillae on each abdominal segment from 
first to sixth inclusive; on thorax and beyond sixth segment, but one pair each. 
Second-instar larva.—General color gray, with brown to brownish black mark- 
ings. Head entirely gray above; two pairs of converging black marks at mid- 
line; two narrow bands extending posteriorly from outer margin of antennae 
and converging; two others between these, shorter, converging behind. First 
subsegment of prothorax grayish white, both above and on sides. Thoracic 
tubercles large and prominent, wholly light grayish in color; setae medium 
long, eight to ten on each tubercle; paired dark brownish to black markings on 
thorax at each suture; black of dorsal vessel widening out at each suture; 
between these large patches of color and the sides, smaller areas of reddish 
brown. Fifth, sixth, and seventh abdominal segments with a little of this red- 
dish brown mixed in the large spots; eighth abdominal segment with a large 
central black spot; ninth with a basal black spot; tenth slightly yellowish brown. 
without dark spots; segments 2, 3, 4, and 5 showing brownish spots on sides 
beneath lateral tubercles; a few dorsal setae, small and inconspicuous, most 
prominent on segments 5, 6, 7, and 8. 
Third-instar larva.—General color gray, marked with brown to brownish black. 
Head grayish, four converging narrow brown bands above; middle pair of 
bands short, curved toward each other abruptly, and extending posteriorly to 
middle of head; outer pair narrow in front, broadening out in posterior half, 
extending from bases of antennae to first subsegment. Lateral tubercles of 
thorax and abdomen wholly gray. Two patches of brownish extending from 
prothoracic depression to metathorax, these increasing in width until they are 
broadest at metathorax, so that this is the darkest part of the body. Prominent 
gray bordering each side of dorsal vessel. Thoracic markings extending back 
over abdomen to fourth abdominal segment, decreasing in intensity and dis- 
appearing at fourth segment; from fourth to seventh segment, abdomen mostly 
