24 LEPIDOPTERA. 



a rich red central band and a white stripe on each side of it, 

 and is a great beauty ; and Mr. W. H. B. Fletcher has a 

 female with the second line not only broadly white but 

 strongly angulated. 



On the wing at the end of June and till August. 



Larva rather slender, but thickest at the thoracic segments ; 

 the segmental folds well defined, the subdividing wrinkles 

 deep on the third and fourth but moderate on other segments, 

 which are dimpled along the sides ; skin smooth but without 

 gloss; general colour dull ochreous with a reddish tinge; the 

 back is deeply tinged with dull purplish-red on the third to 

 the eighth segments, dorsal line only just discernible as a 

 pulsating vessel ; segmental folds pale ochreous; head reddish- 

 brown and shining, with dark-brown mouth and black ocelli ; 

 dorsal plate shining yellow-brown margined in front with 

 darker brown ; anal plate similar, rather pointed in front, 

 and with a little raised ridge behind ; legs and tips of 

 prolegs brown ; spiracles black ; on each side of the third and 

 fourth segments is a triangular group of three large yellow 

 horny spots ; the ordinary raised dots very minute, each with 

 a fine short bristly hair and a faintly paler ring round its base. 



When newly hatched stoutest at the third segment, 

 whitish in colour, shining, with the head black, a dark plate 

 on the second segment ; the usual dots very small, but 

 distinct and dark in colour. 



When half grown, before hybernation, the head, which is 

 smaller than the second segment, is flattened and wedge- 

 shaped toward the front, reddish-brown, mouth darker brown ; 

 dorsal plate shining, semitransparent, light orange-brown ; 

 colour of dorsal region similar, with an orange-ochreous dorsal 

 line and two short transverse bars about the middle of each 

 segment ; subdorsal line pale orange-ochreous ; sides and 

 undersurface light orange-brown ; from this arise faint curved 

 streaks intersecting the line above ; spiracles black. (A dapted 

 from Buckler.) 



