l62 LEPIDOPTERA. 



double line. Of the row of round spots, tlie third from the 

 costa is frequently reduced to a dot, or totally absent ; more 

 rarely the sixth is diminished to a dot. The second and 

 third nervures from the dorsal margin are distinctly 

 thickened with scales in the middle. Hind wings with a loop 

 or horse-shoe shaped spot before the middle, followed by an 

 irregular and sometimes interrupted transverse stripe, beyond 

 which is a broken row of three conspicuous circular spots, 

 with sometimes one or two dots completing the series ; follow- 

 ing these is a distinct and strongly marked complete row of 

 crescents, the horns of which touch a marginal row of black 

 spots on the tips of the nervures, which are further connected 

 by two slender lines. Female rather larger, with the 

 fulvous colour less bright, or even pale, but the markings 

 similar. 



Under side of fore wings like the upper, but with the apical 

 spots paler, and occasionally, though not always, two or 

 three faintly silvery spots adjoining them. Hind wings 

 dusky orange-yellow, clouded with tawny or reddish ; with 

 six or seven dark-edged silvery spots near the base, a row of 

 the same across the middle, and another row, more lunate, 

 along the hind margin. Between the last-mentioned two 

 rows is a series of ill-defined, rust-red spots, having silvery 

 centres. 



It varies in a remarkable manner in the colour and 

 markings of both upper and under sides. Mr. E. Sabine 

 has specimens from near Dover of a singularly rich red 

 fulvous colour above ; and I have one, taken in a part of 

 Surrey in which the species is very rare, which is of quite a 

 pale brown. Two variations of the under side are well known 

 on the Continent : one, called cMorodippc, has the hind wings 

 green ; the other, known as Cleodoxa, is without the silvery 

 spots. Of this last a fine specimen was taken in the Lake 

 district by Mr. Gregson, and supposed at the time to be the 

 allied A. Niohe ; and Mr. Webb has one in which the 

 markings are only faintly indicated in this portion of the 



