278 LEPIDOPTERA. 



of the upper side joined so as to suggest a slender reniform 

 stigma ; beyond this is a single oblique curved transverse line 

 of reddish-brown dusting. Hind wings of very similar colour 

 and shadiug, and the transverse line continued on to the 

 dorsal margin ; beyond it is a faint cloudy smoky-brown 

 line ; central lunule very obscure. Body and legs reddish- 

 brown. 



Rather variable in the depth of the ground colour from 

 pale drab to dark grey-brown. In the darker forms both 

 transverse lines are well margined with chocolate ; in some 

 of the greyer forms hardly margined at all. 



On the wing from the latter part of June till the beginning 

 of August. 



Lakva, when full-grown, seven-eighths of an inch in length, 

 widest at the ninth and tenth segments ; convex above, flat 

 beneath ; below the spiracles is a rather inflated projecting 

 ridge fringed with a row of fleshy filaments, some of these 

 filaments simple, others branched or forked ; head full but 

 rather narrower than the second segment, whitish-green, 

 marked with spots and curves of black upon each lobe and 

 about the mouth; body dull pale bluish-green or greyish- 

 green, or with this colour tinged with brownish-ochreous, the 

 sides paler ; dorsal line darker green, broken into a series of 

 spear-points faintly edged with whitish-green and by short 

 black streaks at the end of each segment ; subdorsal line a 

 faintly paler tint, hardly visible except at the segmental 

 divisions, but edged above by a fine sinuous black line and 

 by a darker green line below ; the ninth and twelfth segments 

 darker in tint than the rest ; along the subdorsal region, upon 

 the thoracic segments, are slight curves of blackish dots or 

 dashes ; on the sides of the remaining segments is a broad 

 streak of whitish-green ; raised dots black at the tips on a 

 base of whitish-green ; spiracles indicated by dark brown 

 rings ; filaments greenish-white ; undersurface flat, dull pale 

 bluish-green; legs well developed, spotted with black; pro- 



