,50 LEPIDOPTERA. j:. 



hind margin in the same manner is much broken up by a 

 continued subterminal line, which hbre forms a considerable 

 row of white spots ; cilia broadly pale grey dashed with 

 grey-brown toward the tips, and having along the base a 

 slender dark grey line. Female rather smaller ; the ground 

 colour paler, with the transverse stripes more distinct, and 

 less intermediate dusting. 



Underside of all the wings an almost exact repetition in 

 colour of the upper, and having the same markings, though 

 these are a little more distinctly divided into dark olive- 

 brown, and whitish, rippled lines. Body and legs olive- 

 brown. 



On the wing in June and July. 



Lakva long and slender, roughened with cross wrinkles 

 from end to end and having, along the s])iracular region, on 

 each side, a raised ridge ; head rounded, yellow-brown ; dorsal 

 region very pale greyish-drab ; dorsal line greyish-white, 

 edged on each side, in its hinder half, with brown, and 

 having at the beginning of each segment after the fourth, a 

 black dot on either side ; subdorsal stripe dark umbreous, 

 almost black along its upper edge, but shading off at the 

 lower ; spiracles small, black ; below them is a slender faint 

 brown line placed on a very narrow ridge ; whole lateral and 

 undersurface otherwise putty colour, or greyish-white ; legs 

 and |)rolegs similar in colour. Very stiff, even rigid, in 

 appearance ; but if touched it coils up almost like a watch- 

 spring. (From larvic furnished for description by Mr. 

 11. J. Turner.) 



August till ^lay on heather (CalJuim inilgans), also on 

 thyme, marjoram, knotgrass, and other low-growing plants. 



Pui'A slender; eye covers bi'ight and ])rotruding, deep 

 black ; wing and limb-covers pitchy-black, rather more dull 

 from abundant sculpture of minute incised lines; dorsal 

 region black at the back of the head, shading off to brown 

 and chestnut-red at the abdominal segments ; each segment 



