104 



PSYCHE. 



[August 1897. 



the wings quite straight, then it has a little 

 inward curve to the end of the wing, taper- 

 ing to the tip which is pointed; the outline 

 of the back has an inward curve to a point 

 about two-thirds waj down the wing; the 

 tip of wings is on the fourth abdominal seg- 

 ment which they almost cover. 



Dec. 9. The chrysalis has turned itself 

 around, and a change has occurred within a 

 few days, for now, instead of green, which it 

 was a week ago, the whole chrysalis is of a 

 satin color and has a little of the satin lustre ; 

 the color is uniform throughout; the poste- 

 rior border of the fourth to sixth abdominal 

 segments are dull golden ; the spiracles are 

 reddish. An Ichneumon fly emerged about 

 the middle or end of December. 



Specimens were ne.xt found at Princeton, 

 Mass., July 15, 1861, and the following de- 

 scription of the caterpillar taken : Light 

 green with longitudinal white lines, and 

 dotted with white spots. A dorsal and three 

 subdorsal lines; the dorsal straight, but the 

 others broken and irregular, the stigmatal 

 edge wrinkled, the white spots irregularly' 

 scattered. Body beneath with the white 

 lines interrupted; the last segment with the 

 anal prolegs and tip of the first pair of pro- 

 legs slightly reddish ; thoracic legs pale 

 greenish, black at the tips; a few scattered 

 hairs on the body. Head faint reddish, 

 marbled with whitish, with two white stripes. 

 Length four-tenths of an incli; greatest 

 breadth one-twelfth of an inch. 



On the night of the 15th it had taken to 

 the top of the box in which it was enclosed, 

 and had slung itself in a thread which 

 crossed the body between the sixth and 

 seventh segments, [ 2-3 abdominal segments ] 

 and had closed its anal prolegs tightly in a 

 mass of silk spun at this point; it now 

 remained motionless, the front part of the 

 body hunched with head bent toward the 

 legs which are gathered closely together. 

 It changed entirely to a chrysalis on July 17, 

 The disk of the wing, toward the tip, became 

 very pale on July -5th; the legs began to 

 darken, as well as the eyes by July 27 ; wings 



all darkened on morning of the 2Sth, and 

 emerged during the dav. 



Another caterpillar found at Princeton 

 July 15, and probably an earlier stage of this 

 species was light greenish with a reddish 

 tinge above, with very faintly indicated 

 lighter and darker bands; beneath and upon 

 the lower portions of the sides, the green is 

 of a yellowish tint; the reddish tint of the 

 back is deepest on the thoracic and last three 

 segments; there area very few scattered, very 

 short hairs over the body. The head is of a 

 little deeper red, mottled with lighter, its 

 posterior edge is black on the sides ; the. trian- 

 gular spot is lighter, and the edge of the 

 labrum and some parts of the mouth darker. 

 The legs are dirty with darker tips; the 

 prolegs are like the segments which have 

 them. Length 3 of an inch. 



Later, again at Princeton, Aug. 24, t86i 

 I found another specimen in general aspect 

 very much resembling the older specimen 

 from Princeton already described, the color- 

 ation only being different. It was exceed- 

 ingly dark green, almost black upon the 

 dorsal and lateral surfaces; streaked on dor- 

 sal surface with yellowish just as in the nor- 

 mal type; streaked heavily on lateral surfaces 

 with golden yellow, after the same style as 

 in the other; beneath, the outer portions are 

 brownish, and the. inner dirty greenish yel- 

 low, all streaked with white longitudinally. 

 Prolegs pale greenish, legs pale yellowish 

 green, dotted with black. Head much as in 

 the first, rust red streaked and dotted with 

 yellowish white; antennae and labrum as 

 there ; black dots of body apparently the 

 same as there, though the general color 

 makes it difficult to distinguish them. Size 

 as before. It changed to a chrysalis on 

 Sept. 12. 



On Aug. 12, I found at Princeton a cater- 

 pillar just about to turn to chrysalis; it was 

 fastened to the midrib of a leaf of Comptonia 

 near the middle, with the threads of the 

 wing well separated and well pushed under. 



Samuel H. Scudder. 



