104 Mr. A. G. Butler's additional notes on 



top and white beneath, or in front, on that segment, 

 itistead of being entirely yellow, as in C. fraucnfeldi ; in 

 having the said line interrupted or replaced on the sides 

 of fifth segment by short treble lines, the top one blue, 

 the middle one black, and the under one orange, and in 

 having the rest of the lateral line pale yellow on top and 

 rose-colour under ; in wanting the reddish spots on the 

 backs of the third, fourth, fifth, and sixth segments, 

 and in having a dorsal line of a paler green than the 

 rest of body. Feeds on ' Maiteu ' {Maitemis chilensis). 



" Cocoon. — Differs from C . frauenfeldi in being slightly 

 pear-shaped instead of oval, and is grey instead of 

 yellowish ; the larva spun up on August 15th." — T. E. 



31a. Poli/thysana albescens. 



" Larva. — Length rather over three inches ; head 

 smaller than second segment, greenish, with black 

 markings ; colour beneath pale green ; above ashy, with 

 a pinkish tinge ; a large velvety-black patch on the back 

 of second and third segments, visible only when the 

 larva is walking ; body covered with short isolated 

 stifiish hairs ; the second, third, and fourth segments 

 have in addition eight bipectinate spines, two on each 

 side, and four on the back of each segment, those on the 

 second segment about three lines long, those on the 

 third and fourth about one line long, and also directed 

 forwards ; the primary spines are reddish or pink, the 

 pectinations are generally thick at the base, black and 

 yellow, then they terminate abruptly in a slender whitish 

 hair ; the sixth to eleventh segments inclusive are fur- 

 nished each with four stellate bunches of spines, each 

 of from ten to fourteen prickles, yellow at base, black at 

 tip ; the central prickles having more black on them 

 than the peripheral ones ; these stellate prickles are 

 situated at equal distances from each other in a line 

 between the two spiracles of each segment ; the twelfth 

 and thirteenth segments have but three bunches each ; 

 beneath each spiracle the fifth, sixth, eleventh, and 

 twelfth each have two long bipectinate spines, like those 

 on the thoracic segments ; the other segments have one 

 each in the same place (when the larva is at rest these 

 are closely applied to the leaf or twig on which it rests) ; 

 spiracles small, whitish yellow, with a slender black 



