3i8 LEP/DOP-fERA. 



smoky-wliite ; central spot black ; beyond it the whole area 

 is rippled with slender smoky-white transverse lines, and the 

 nervures dotted fiiintly with black. Body and legs pale 

 brown. 



A little variable in depth of colour, especially in that of 

 the clouds at the aut^les of the first and second lines of the 

 central band, these are sometimes rather lartre, in others 

 small or almost absent. Occasionally a great increase of the 

 rich purple colour of the central band is observable. 



On the wing from the end of July or August through the 

 autumn, going into hibernation before the winter, and re- 

 appearing on the wing in April and ilay, at which time it 

 pairs. Hofmann states that the fertilised female hibernates 

 in holes and cellars, and lays her eggs in the spring, but this 

 seems to be unlikely, and Dr. T. A. Chapman has in this 

 country distinctly proved the contrary. 



Lakv.\ smooth and plump, very slightly tapering to both 

 extremities ; head rather small, rounded, slightly withdrawn 

 into the second segment, light green ; general colour yellow- 

 green ; dorsal line a dark green stripe sharply edged on 

 either side by narrow lines of the ground colour ; subdorsal 

 lines equally dark green, similarly edged, and followed by a 

 broader dark green stripe, below which is a broad s{)iracular 

 stripe of the yellow-green ground colour, edged below again 

 with green ; undersurface, legs and prolegs green. 



Or — Pale green with four slender yellowish-white lines 

 down the dorsal region ; and the spiracular stripe broad, 

 lemon-yellow, bright yellow, or orange ; undersurface, legs, 

 and prolegs, green. 



May and June, on Ehumnua cafhurtiei's (buckthorn) and 

 It.fmwjula, also sometimes upon blackthorn and bird-cherry 

 (Fninua padus), concealing itself between spun-together 

 leaves. 



Vvvx dull red-brown; with small, elongated tongue-sheath, 

 and a smooth conical cremaster elongated into a weak forked 



