■2('A 



PSYCHE. 



[Aug-iist — December 1S89. 



long. Head and feet black. Body- 

 color darker and browner than before, 

 with a dorsal white line, and lateral 

 orange line, broken between the seg- 

 ments. 



Warts shiny black, with short very 

 black hairs, growing in tufts. 



27 June. Fourth moult. 21 mm. 

 long. As before, only bigger and 

 blacker, and with the hairs longer. 

 Orange laterals deeper and brighter. 



They move very rapidly with a quick, 

 jerky motion, stopping suddenly when 

 at the fastest speed. 



4 July. Fifth moult. As before, 

 only larger, and with. denser hairs. 



10 July. They were from 25 mm. 

 to 29 mm. in length. Most of them 

 were very active and voracious. If 

 left without food for even a short time 

 they would eat such of their number as 

 were preparing to spin, and were there- 

 fore less vigorous than the rest ! 



1 1 July. Began spinning. Unless 

 the cocoons of the earlier spinners were 

 removed the pupae would be foimd half 

 devoured by the larvae not yet ready to 

 spin, even when there was plenty of 

 food plant in the boxes. 



The cocoons were oval, thin, with 

 hairs spun into them. Pupa of bright 

 chestnut color, short, stout. 



Cressonia juglandis, a. & S. 



Eggs, ovoid, pale green, laid about 7 

 July. They hatched 17 July; having 

 grown ^'ellow the day before. 



Young larva, 9 mm. long, pale yel- 

 low, with short, yellow caudal horn ; 

 feet and props concolorous with body. 



Anal props extended, in trailing points, 

 beyond the anal shield. 



They ate walnut. 



31 Julv. First moult. 15 mm. long, 

 slightly rough. Head green, with a 

 long, conspicuous point on the apex. 



Body, feet, props, and caudal horn 

 green. 



The body had a longitudinal white 

 line on each side of the dorsal line, ex- 

 tending from head to horn. 



The larvae di'ank greedily. In two 

 days the caudal horn grew brownish, 

 and faint yellow obliques appeared. 



27 July. Second moult. Head 

 green, with two long brownish filamen- 

 tous points at apex. From these points 

 a brownish line extended down the back 

 of the head. The head was granulated 

 with yellowish-white points, and had 

 yellow face-lines. 



Body green, granulated with yellow- 

 white, and having yellow obliques and 

 subdorsal lines. 



Feet and props green, the anal props 

 having the trailing points as before. 



Caudal horn brownish and granu- 

 lated. 



I August. Thii'd moult. Head 

 green, very pointed, with white face- 

 lines, and very bifid apex. 



Body green, and, as well as the head 

 and horn, thickly granulated with yel- 

 low white points. Horn long and 

 usually held level with the body. Anal 

 shield had two largish white tubercles. 



8 August. Fourth moult. Head 

 less pointed, though still shaped like an 

 apple- seed. 



Bodv as before. Anal shield bisected 



