THE LETTERED TORTRIX MOTH. 141 



On Plate XI. fig. 7, is a figure of another 

 species of the same family, though not of the 

 Bame genus. This is the Lettered Tortrix 

 {Leptogramma Uterana), so called from the manner 

 in which its upper wings are decorated with 

 marks something like small letters. 



The upper pair of wings present a curious 

 roughened appearance which, when examined 

 with a magnifying-glass, is seen to consist of a 

 number of bright but pale grass-green scales, 

 which are elevated above the general surface of 

 the wing. There is a row of tiny white dots 

 upon the hinder margin. Some specimens have 

 a patch of black elevated scales upon the base of 

 the upper wings, and there are few of this very 

 variable insect which are exactly alike in the 

 colour and distribution of the markings. The 

 lower wings are simply pale brown. 



A mere glance at the little Moth shown in 

 Plate XL iig. 9, is sufficient to show one of its 

 principal peculiarities, namely, the deep scallop- 

 ing in the front edge of the upper wings. In con- 

 sequence of this characteristic it is called by the 

 appropriate name of JSTotchwing {Tcras caudana). 

 It is rather variable in colour, but the ground- 

 colour of the upper wings is always brown of 

 some shade or other. In the specimen from 



