ENTOMOLOGICAL CONTRIBUTIONS. 151 



newly emerged larva measures one-fourth of an inch in length. The 

 head is red, round and smooth. Body of a dull red color, armed, 

 except on the last two segments, with six rows of bristle-tipped 

 spines: the subdorsal spines on the second and third segments are 

 nearly one-third the length of the body, black, rugose, bifurcated, eacli 

 prong tipped with a white acute bristle ; on the top of the eleventh 

 segment is a similar spine resting on a red, conical tubercle. The 

 segments are annulated with three fuscous bands terminating lat 

 erally at the stigmatal flexure, of which one precedes, and two follow 

 the spines : the terminal segment declines considerably from the 

 plane of the others. Legs, black; prolegs, red. 



The larvae feed only at long intervals, passing most of their time 

 in wandering over the leaves or resting on their petioles. 



First molt. Of one individual on July llth; on the 12th, of tw T o 

 others, and on the night of the llth, of four. Length of the larvae, 

 one-half inch. Head glossy, ferruginous, fuscous at the clypeus 

 and about the eyes. Collar and terminal segment, ferruginous. The 

 segments are testaceous centrally, shading into an obscure red at the 

 incisures, the transverse bands which previously marked them hav 

 ing disappeared. The spines are glossy black with branches tipped 

 with white acute bristles: the two long spines of the second and third 

 segments each and the medial one. of the eleventh, which are about 

 one-fifth the length of the body, are directed slightly forward ; their 

 two forks are of unequal size; the last mentioned spine is in addi 

 tion to the six of the preceding segments, and ranges w r ith the four 

 substigmatal and lateral spines, the two subdorsal being placed 

 farther back on the segment : the terminal segment has thirteen 

 spines, viz., six occupying the usual position, a seventh medial one 

 behind the range of the preceding, four on the anal shield, of which 

 the two anterior are the larger (four others are indicated by acute 

 granulations on the posterior margin), and a small one on each ter 

 minal leg exteriorly. The stigmata are broadly elliptical, fuscous, 

 and situated on a distinct, elliptical, testaceous spot. Legs and pro- 

 legs testaceous, marked outwardly with fuscous. 



On the 16th two larvue were in position for molting, indicating 

 progress in the change by -their translucent, vacant head-cases and 

 heads covered by the skin of the first segment. 



Second molt July 17th. Length, six-tenths of an inch. Imme 

 diately succeeding the molt the head is pale red, and the long spines 

 before noticed, now appearing as horns, are pearl white. 



