The Peab Tree Pstlla. 239 



short basal and a long terminal joint tipped with two long 

 bristles. The short, stout legs terminated by minute claws enabled 

 the nymphs to soon find a suitable feeding place. Several 

 nymphs were immediately transferred to other cages, only one 

 being placed in each cage. The next day ihe location of the 

 nymph was often readily determined by a globule of honey-dew 

 several times larger than the little creature which had secreted 

 it. After feeding thus for six or seven days th(j nymphs became 

 too large for their skin which burst open along the middle of tlie 

 head and back and the insect crawled forth clorhed in a new r. ud 

 elastic skin that had formed beneath the 3ld one. After thus 

 moulting the nymph usually sought a new feeding place, leaving 

 its shriveled skin attached to the globule of honey de^v it liad 

 secreted. 



In their second stage the nvmphs increased about one-thirJ in 

 size, but were of the same general color, except the tips ct rhe 

 antennae, which were black. There were four joints in the 

 antennae, a division of the third taking place at the moult. The 

 segments of the abdomen were more distinct and the .wing-pads 

 were developing. The nymphs remained in this istage about f<.)ur 

 days, when the second moult occurred. 



At the third stage the nymphs measured .027 of an inch in 

 length. The wing-pads were larger and blackish; and the other 

 black markings which distinguish the full-grown n.yinphs \N'ere 

 faintly outlined. Six or seven joints were now distinguishable 

 in the antennae, the last three being black. 



About three days later, the third moult occurred. The uyinphs 

 differed from those of the third stage in having eight autcnnal 

 joints; the wing-pads were larger; the nymphs were .038 of an 

 inch in length; and the eyes had become a dai-k crimson hue. 

 In some cases the nymphs in this stage were very distinctly 

 marked, differing from the full-grown nymphs only in having 

 fewer and larger black spots on the thorax. The duration of 

 this stage was about four days. 



At the fourth moult, the markings which had been faintly 

 visible since the second moult now came out very distinct. This 

 proved to be the last nymph stage. The general appearance of 



