112 STERRHA SACRARIA. 



chiefly on the anterior and posterior segments ; the 

 head rather flat, and widish. 



When at rest the larva is not quite straight, the 

 back being slightly raised ; when disturbed it curls up 

 spirally (like an Acidalia), forming about a coil and 

 a half. 



The colour on the back is either a full green or a 

 blue-green, velvety, with the posterior segments more 

 yellowish-green, the belly a delicate whitish-green, 

 and the segmental folds yellow. The head is pale 

 brownish-red ; on either lobe a pale stripe bordered 

 above with brighter red, and below with darker 

 brown ; the very fine dorsal line, paler than the 

 ground, is bordered throughout more or less distinctly 

 with lines of either a bright rust or deep red colour, 

 which at each of the folds after the fifth segment 

 expand into a V, with the apex pointing forward, and 

 enclose a three-cornered yellowish-white spot ; the 

 dorsal line becomes more distinct and its borders of a 

 stronger red after the eighth segment ; the anal flap 

 and ventral legs are tinged with purplish -pink ; there 

 are two very fine faint brownish-green subdorsal lines, 

 which, in one or two of the larvae, were on the 

 anterior segments united in one strong brownish-red 

 line, running back from the dark stripe on the lobe of 

 the head; the region of the spiracles yellowish-green, 

 becoming a more decided yellow stripe in the second, 

 third, and fourth, and the eleventh, twelfth, and thir- 

 teenth segments, and running down the anal pair of 

 legs ; the spiracles reddish. 



From this account it will be seen that this larva 

 varies greatly during its growth, the first and last 

 stages being the most beautiful. 



The pupa in shape is long, slender, and cylindrical, 

 and very flexible ; the head-case projecting and much 

 smaller than the body, which is tolerably uniform in 

 thickness ; the wing-cases distinct, widely separated 

 from each other, and reaching halfway between the 

 head and tail ; the antenna-cases reaching one or two 



