io6 LEPWOPTilRA. 



the female, but ofteu it is shaded paler or clouded with 

 orange, and not uufrequently has merely a faint clouding of 

 purple, this colour being replaced by orange ; also there is 

 every possible intermediate shade. Mr. Sydney Webb pos- 

 sesses a specimen in which this baud on all the wings is of 

 as bright an orange-yellow as the rest of the surface ; and 

 another in which it is, on the contrary, of a dull leaden purple. 

 Mr. S. J. Capper has one in which the band is purple-black. 

 There is variation also in the breadth of the marginal bands 

 irrespective of colour ; and I possess a male specimen in 

 which they are of doable the normal breadth, the second line 

 being, in it, removed from its usual position to the middle of 

 the wing and very near the first line, while it reaches the 

 costa at a considerable distance from the apex. In all 

 fluctuations of this nature the hind wings agree. 



On the wing in July and August ; and occasionally in a 

 very partial and uncommon second generation in September 

 or October. 



Larva twig-like, smooth ; seventh segment considerably 

 swollen laterally, and with two small dorsal eminences ; sides 

 puckered ; there is a small projection on each side of the 

 mouth ; head small, flattened, dull purple, with a white or 

 yellowish transverse bar above the moutb ; colour variable, 

 greenish-brown or yellowish-brown wdth numerous dark grey 

 longitudinal wavy markings ; an ochreous or pale yellow 

 dorsal patch, euclosiug a Y-slia])ed black mark, extends from 

 the fourth to the apex of the seventh segment, and is some- 

 times continued on the succeeding segments in the form of 

 dorsal diamonds ; dorsal dots white or pale straw colour, sur- 

 rounded with black ; spiracular line waved, pale ochreous, 

 edged above with hazle-brown, darkest on the seventh seg- 

 ment, and uniting with a broad whitish, or pale ochreous, 

 band on the fu'st pair of prolegs ; on the undersurface are 

 two interrupted dark grey bands, or a row of black spots 

 having white centres. (C. Fenn.) 



