8 4 Lloyd's natural history. 



met with in Western Asia and Siberia. A. levana has been 

 said to have been taken in Great Britain, but apparently only 

 through the error of Dr. Turton, who translated the " Systema 

 Naturae " of Linnaeus into English many years ago, and marked 

 various species as British, almost at random, e.g., A. 

 levana. 



The summer brood (A. prorsa) measures rather less than an 

 inch and a half across the wings, which are black, with a red 

 marginal line. There is also a rather broad white band, in- 

 terrupted on the fore-wings, and rather irregular, but broadest 

 in the middle on the hind-wings. The fore-wings are also 

 marked with a few white dots outside the upper part of the 

 white band. The under side is brownish-red, with the white 

 band reproduced ; the hind-margins are dull white, and there 

 are some whitish dashes near the base. 



The spring brood (A. levana) is fulvous, with scattered black 

 spots. There are also three white spots near the tip of the fore- 

 wings, and a row of black spots across all the wings. On 

 the under side the Butterflies resemble each other more 

 than on the upper, but the under side of the A. levafia form 

 is more yellow, and the white band is narrower and less 

 conspicuous. 



The larva is spiny, and of a black or greyish colour, dotted 

 with white ; the spines are black or yellow, and the fore-legs are 

 black, with the extremities yellow. It feeds on nettle in June 

 and September. 



EXOTIC GENERA ALLIED TO ARASCHNIA. 



The genus Symbrenthia, Hiibner, includes some East Indian 

 species, measuring about an inch and a half across the fore- 

 wings. They are brown, with fulvous markings, consisting of 

 a band in the cell of the fore-wings, an interrupted one 



