1884.] 123 



olour of a pale yellowish stone tint, but all the middle s])ace of the 



ack shows ashy-grey from the internal vessels, and through this space 



^ns the darker interrupted pulsating dorsal vessel ; the segmental 



plds also show darker ; the head very glittering, in colour clear 



pddish-chestnut ; the collar is of a much darker brown, reaching 



pross the whole length of segment 2 on the back, but curving for- 



ards at the sides, and being cut in two by a pale line, and each half 



bordered with darker brown again along this line, and also for a 



^ort way along the front and back edges ; the spiracles are prominent, 



[it not easy to see, and are ringed with brown ; the usual dots are 



ry tiny and jet black, placed on large shining warts ;. on each of 



gments 3 and 4 there is a pair of large roughly triangular warts 



>ar the front edge, and four rounder ones on each side, and all these 



e noticeably darker than the warts on the other segments, and ap- 



Tcntly form a distinguishing feature ; on the other segments the 



ipezoidals are placed on large warts of an oblong shape, the front 



* ir being squarer than those behind, but with each pair the greater 



ligth runs transversely ; these warts, with the lateral ones, which are 



r.inder, are all pale blackish ; there is no distinct anal plate ; all the 



dts bear fine lougish bristles. 



Mr. Fletcher describes his larvse, fed on fresh leaves, as being 

 ^^tery yellowish-green in colour, with sage-green warts, this difference 

 course being caused by the different colour of the food seen 

 tlough the transparent skin. 



The larva makes a toughish cocoon, lined with a fabric of white 



and coated externally with leafy rubbish, about 15 or 16 mm, 



leg, and about 6 mm. wide. The pupa is about 11 mm. long, slender, 



2 im. across the thorax ; the eye-cases rather prominent ; the tongue-, 



aienna- and leg-cases soldered together, are attached to the body as 



fa as the end of the wing-cases, thence free, and reaching quite to 



bb end of the abdomen, and over-reached by the spike only ; the 



jhulders swell gradually from the head, the abdomen tapers very 



;etly, the general figure is cylindrical ; the anal spike is slightly 



;u, ed, and is furnished with six curl-topped spines ; the pupa-skin 



3 iiooth, not very shiny, under a lens appearing rather roughened ; 



h colour generally yellowish-brown, the eyes, the tip and the rings 



f he abdomen, and the tip of the tongue-case, chestnut, the spike 



ti darker. 



Exeter : October 9th, 1884. 



L 2 



