808 . Journal of Agricultural Research vol. vi, No. 21 



three-fourths hours the abdominal segments are nearly the normal shining 

 red-brown. 



Immediately after pupation the pupa stretches itself longitudinally 

 almost to bursting, remains so from 12 to 15 minutes, and has been 

 observed to contract and then extend itself again before resuming a 

 natural appearance. On three pupae immediately after pupation there 

 was a transverse red-brown mark on the clypeus near its base and between 

 the compound eyes. Each of these pupae, while nearly white, showed a 

 red-brown spot dorsad of the antennae, which is the prothoracic spiracular 

 spot. 



The moth, immediately after emerging from the pupal shell, often 

 carries a drop of clear fluid at its mouth. It then runs for a short dis- 

 tance. The wings require about 20 minutes to become fully expanded, 

 with the upper surfaces folded together and hanging, and within one and 

 a quarter hours they are in natural position flat on the back or slightly 



tectiform. 



DESCRIPTION OF STAGES 1 



THE EGG 



When first laid the eggs are perfectly smooth, shining milky white, and without any 

 trace of sculpturing. Later the color changes through cream to flesh color, and just 

 before hatching to a leaden cast. From a dorsal view they are apparently symmetri- 

 cally spherical, but when laid in rows or masses, as is usually the case, they become 

 compressed on two sides. Length, dorsal view, 0.542 to 0.561 mm.; width, dorsal 

 view, 0.425 to 0.464 mm. 



THE LARVA 



First instar. — Head pale vandyke brown, shining, its posterior margin deeply 

 emarginate. Ocelli blackish, 12 in number, 6 on each side of the head, 5 of which are 

 arranged in a semicircular form, the lowest of the 5, however, being separated by a 

 space so that it appears paired with the sixth, which is located near the base of antenna. 

 Cervical shield on prothoracic segment pale dusky. When first hatched the body is 

 whitish, later becoming tinged with green, due to chlorophyll from the foliage eaten. 

 Entire body sparsely clothed with moderately long fine hairs, which are about as long 

 as half the width of the body, those projecting from the head and sides of the body 

 whitish, the dorsal hairs blackish, and the body hairs on more or less conspicuous black 

 tubercles. The fore pair of abdominal legs are somewhat atrophied, which may 

 account for the characteristic looping walk of the first and second instar larvse. 



Just before the first molt the head is very dark brown to almost black, and the trans- 

 verse cervical shield is dusky brown. There is a clear white, shining area with several 

 blackish dots in a row on each side extending from the anterior end of the segment to 

 a distance about equal to the width of the cervical shield, anterior to the latter, which 

 represents the head and ocelli of the second-instar larvae. The ground color of the 

 body is of a decided greenish tint, paler toward the posterior end. The body seg- 

 ments bear seven alternate brown-ocher and white longitudinal stripes on each side 

 of the whitish median dorsal line; the ventral surface is white. The dorsal lines are 

 more or less obliterated or inconspicuous on the thoracic segments. Hairs much less 

 conspicuous than early in the instar. The thoracic legs black, the pseudo and anal 

 legs pale dusky. 



Measurements, average of two individuals, as follows: Recently hatched larva, 

 length of body 2. 11 mm., width of first thoracic segment 0.35 mm., of cervical shield 



•All descriptions and measurements, unless otherwise noted, are from living specimens. 



