NERICE BIDENTATA 227 



segment a brown substigmatal j^atch. The anal props 

 were striped with brown ; the abdominal props and legs 

 were brown. Sparse hairs were scattered over the 

 body. The general effect was slender. 



It molted again four days later. Its head was clear, 

 glassy green, with two brown face-lines. Its body was 

 glassy green, almost translucent, with very few set8e,and 

 had a faint white lateral line, a broken brown substigma- 

 tal line, a brown substigmatal patch on each side of the 

 fifth and tenth segments. The fifth segment had a dou- 

 ble tubercle with brown tips, the eleventh a hump as 

 before. The fourth and sixth segments had two green 

 warts on the dorsum. The legs were brown and shin- 

 ing, the props pale brown banded with darker; the anal 

 props were very slender. When at rest the body was 

 like a two-arched bridge, curving from the first seg- 

 ment in a marked arch, the abdominal props forming 

 the middle pier, while from them the body rose in a 

 second arch which was completed by the anal props. 

 These touched the twig or midrib when at rest, but 

 were raised in the air when the crawler was in mo- 

 tion. 



The caterpillar ate the leaf at the tip, first on one 

 side of the midrib, then on the other, and rested, usu- 

 ally, on the midrib. 



In a day or two all the marks grew clearer, and all 

 the segments from six to ten had each a small, brown- 

 tipped prominence on the dorsal line. From these 

 prominences extended, on each side of the segment, a 

 white oblique line, the open part of the V thus made 

 being toward the anus. On the thoracic segments a 

 white subdorsal line appeared. Seen in profile the 



