40 



now lost the knobs at their extremities and are brown in some 

 larvae and green in others. The only other changes are that the 

 horn-shaped tubercles on the fifth to tenth segments are now 

 larger and more prolonged, and are pink on the inside and have 

 the appearance of burnished silver externally, and the stigmatal 

 line is occupied by a marked band of color, consisting of a dark 

 carmine line (passing through the inconspicuous green stigmata) 

 bordered above by a narrow pale blue, and below by a white line. 

 The legs of some larvae are green and of others brown. Prolegs 

 of some, green, and in others green tipped with brown. In some 

 larvae the stigmatal space has numerous small black tubercles on 

 each segment ; in others there are no black tubercles. 



Larvae passed their fourth moult on June 17th. Length, ij^ 

 to i}4 inch. Nearly cylindrical, green. Head green, sub- 

 quadrate, bilobed, covered with minute green granulations, as is 

 also the whole of the body. The dorsum, subdorsal and stigmatal 

 spaces of all the segments are thickly sprinkled with minute white 

 tubercles, while in the stigmatal space there are many minute 

 black tubercles scattered among the white ones. The protuber- 

 ance on the second and third segments are now one-eighth to 

 three-sixteenths of an inch long, slightly conical, pink, with a 

 number of white tubercles scattered along them, marking the 

 places of the former branches. The " silver horns " on the fifth 

 to the tenth segments are now one-sixteenth to one-eighth of an 

 inch long, bright pink inside and burnished silver externally. 

 The number of these "silver horns" varies in different larvae, 

 some having them only on the seventh and ninth segments ; 

 others have them on the fifth, seventh and ninth segments; still 

 others have them on the fifth, seventh, ninth and tenth segments. 

 I have never found these silver horns on any other segments than 

 those mentioned above, nor have I ever found a larva in wliich 

 they were wanting, or in which they were present, on only one 

 segment.'^' The stigmatal line is marked by a dark carmine-red 

 line bordered below by a white band. Just below the stigmatal 

 band of colors is a row of prominent black conical tubercles, one 

 to each segment. The protuberance on the eleventh segment is 

 pink with round white tubercles marking the places where the 

 branches were. Legs and pro-legs green. 



The larvffi change only in size during the last moult, and are 

 from two to two and one-half inches long when full grown. They 

 began to quit feeding on the 20th of June, entering the ground 

 within a few hours after ceasing to eat. There they pupated 

 within an oval cell lined with a thin cocoon of silk, the first cast- 

 ing its skin on the 24th. The pupa is at first bright green, but 

 changes to jet black in a few hours. Pupa is nearly cylindrical, 



* A larva fjund by a fri nd (by bushheatina) in company with Bicolor \a.r\2e, having no 

 silver ho-ns, but only the rudiments on one segment, but otherwise resembling Btcolor larva 

 so clostly that he supposed it to be oi ly larval variation, disclosed a ^ Anisota bisecta, Lint. 



