MYMPHALIDAE: APATURIDI. 1797 



does not grow but the latter does (French). Mr. Rowley has found them 

 on both. 



The eggs are usually laid singly on tlie under side of the leaf, and hatch 

 in four or five days. "The young larva, soon after emerging, constructs 

 for itself a perch on which it rests, after the manner of a [Basilarchia] . It is 

 at the tip of the leaf, made by eating away along-side the mid-rib, and using 

 this rib as the base, covering with silk and lengthening by chewed bits of 

 leaf bound and held by the silk. One perch in first stage measured [7 mm. ] 

 in length, and on it the larva rested with the anterior segments arched, 

 only the prolegs furnishing the support. But if there be two larvae on one 

 leaf, the second perch may be made anywhere at the side. After the first 

 moult the perch was lengthened and made heavier by binding it with larger 

 pellets, so that it looked like a string of knobs, and the greatest length I 

 observed was [10 mm.] . The young larva bears much resemblance in body 

 and head to young [Basilarchia archippus] , but is more like that larva at 

 second stage than the first, and the head with its many tubercles and pro- 

 cesses on vertices and at back still more resembles either second or third 

 stage of [archippus] than the first. 



"After the second moult, the perch is deserted, and a case is made by 

 covering the upper surface of the leaf with silk, and bringing the edges to- 

 gether. The larva lies at first quite concealed, and eats the base of the 

 leaf. Here the next moult takes place, and the larva then builds a new 

 case, and goes outside to feed, after the habit of the neai-ly mature [Euphoe- 

 ades] troilus. By the time the fourth moult approaches, the larva is as 

 long as the case, and the head will be exposed at one end, and tail at the 

 other, the rounded case being a pretty good fit, rather loose." (Edwards.) 



The goat-weed "has a peculiar wooly or haii-y, whitish green appear- 

 ance," says Riley, in his earlier account, "and in the month of September 

 its leaves may frequently be found rolled up, with the larva inside. This 

 roll of the leaf is generally quite uniform, and is made in the following 

 manner : Extending itself on the midvein, with its head towards the base of 

 the leaf, the larva attaches a thread to the edge, at about one-fourth the 

 distance from the base to the point. By a tension on this thread, it draws 

 this edge partly toward the opposite one, and fastens it there, being assisted 

 in the operation by the natural tendency of the leaf to curl its edges inward. 

 Fastening a thread here, it repeats the operation until the edges meet, and then 

 it proceeds to firmly join them nearly to the apex, leaving a small aperture 

 through which to pass the excrement. During hot days the larva remains 

 concealed in the leaf, and towards evening comes out to feed, though some- 

 times it feeds upon its house, eating the leaf down halfway from base to 

 point. It then abandons it and rolls up a new one. In the breeding 

 cage, when placed in a cool, shady room, the larva seldom rolls up the 

 leaves, but feeds at random over the plant, and when at rest simply remains 



