68 LEPIDOPTERA. 



base, shading off to smoky reddish-brown at the hind margin, 

 which is strongly crenulated ; cilia white, dashed and shaded 

 with dark brown. Female extremely similar. 



Underside of the fore wings smoky-brown shading off to 

 pearly-white toward the base of the dorsal margin ; dorsal 

 region also white, and hind margin to the middle ; cilia white 

 dashed with brown. Body and leg-tufts dusky-white ; legs 

 white streaked with brown. 



On the wing during the latter half of May. 



Larva plump and cylindrical ; when viewed sideways it 

 appears of uniform thickness, but seen on the back it tapers 

 behind from the tenth segment ; head rather more swollen 

 than the second segment, rounded, bright ochreous-yellow, 

 mottled with red and spotted with black ; ground colour 

 greenish -white, pale bluish-grey, or whitish-grey ; down the 

 middle of the back is a series of broad deep yellow triangles 

 pointing backwards, each edged on both sides by large con- 

 fluent deep black spots, usually forming a somewhat C-shaped 

 marking, which encloses another yellow spot, and below is 

 followed by several black spots ; behind all these, on each 

 segment, is a deep green transverse spotless band ; in the 

 spiracular region there is a yellow spot on each segment 

 except the second, besides the lateral black spots already 

 mentioned are smaller ones on each proleg, and occasionally 

 some fine short transverse black streaks on the sides. The 

 forms of the black markings, composed of united spots, vary 

 in the degree of union of these spots ; each anterior spot is 

 confluent with the posterior one below it, but does not unite 

 transversely with the others ; in one variety they resemble 

 tadpole forms united by the tails, in another these tails are 

 as thick as the spots and form blotched curves ; and in a 

 third these curves are so thick and confluent as to include 

 some of the ordinary side spots, thus completely edging two 

 sides of the yellow triangle with a blotched black border. 

 (Adapted from Buckler.) 



