Twelfth Report op the State Entomologist 201 



grown caterpillars is becoming apparent. The general color of the body 

 is yellowish-green with three, more or less well defined, rose-brown lines 

 on each side of the body, — the lower line being the broadest and the most 

 conspicuous. In this stage the minute black hairy tubercles of the body 

 may be seen. The caterpillar still loops as it walks and spins a thread 

 as it drops from a leaf when disturbed, as in the first stage. After the 

 second molt the striping is more pronounced, though the general color is 

 the same. The habit of looping when walking and of spinning a thread 

 when it drops is lost : instead of the latter it curls iteelf up as it falls to the 

 ground. After the third molt the caterpillars become a dull, dark green 

 color and the head is mottled with dark brown. The striping is nearly 

 that of the full-grown caterpillar. In the next two molts there is but 

 little change in its markings and other features. 



The full-grown caterpillar. — When full-grown or nearly full-grown, 

 there is quite a range of coloring to be seen among a large number. 

 Their general appearance is such that once seen they are easily recog- 

 nized. The larger ones are about one inch and one-half (38 mm.) long, 

 but associated with them are many smaller individuals, some of which 

 are only about half the length of the largest. This range in size may be 

 seen at the time when their ravages attract attention. They may be re- 

 cognized in their latter stages by the median white Hne beginning at the 

 head and extending a variable distance along the back^ — in some of the 

 lighter and younger ones it may be traced the length of the body. On 

 either side of the median white line, there is a broad brown stripe more 

 or less distinct (in lighter individuals there may be a white mottling along 

 this stripe), bordered laterally by a narrow one of darker brown. Next 

 is a white line similar to the median one but more constant, and be- 

 tween it and the next white line there is a stripe of variable brown, some- 

 times mottled with white ; it is usually lighter than the stripe on either 

 side of the median white line. Next comes the stigmatal stripe which 

 in well-marked individuals is the most striking, it being as dark as any, 

 and below it is the white substigmatal Stripe ; these two are somewhat 

 variable in color in different caterpillars. The ventral surface is a vari- 

 able yellowish-green : the abdominal legs are brown at the base. The 

 light and dark varieties of the caterpillars are represented in the two 

 lower figures of Plate III. 



The pupa The mahogany-brown pupa is about three-fourths of an 



inch (18 to 20 mm.) long. It is rather stout and on the anal extremity 

 there is a pair of slightly converging spines, and on each side of these, 

 two fine curled hooks. The spiracles are nearly black. 



