209 



ASTHENIA PODALIRIARIA, Westwood. 



PLATE XXIX. Fig. 1. 



In supplying us with a figure of this new species? 

 Mr. "Westwood has suggested the propriety of refer- 

 ring it, along with several others, to a new genus, 

 which he names Asthenia. The species approach 

 our English Ourapteryx sambucaria in general form 

 and in the hind wings being tailed. From that 

 genus, however, they differ in having the antennas 

 short and strongly bipectinated, and the legs as well 

 as the body very short and weak. The fore wings 

 are triangular, not falcate at the tip, the external 

 margin forming nearly a straight line. The veins 

 of the fore wings are arranged as in Ourapteryx, 

 except that the branches both of the postcostal and 

 medial veins arise much closer to the base of the 

 wings. The hind wirgs are much more decidedly 

 tailed than in 0. sambucaria; the postcostal vein 

 emits three branches, independently of the medias- 

 tinal vein, whereas in 0. sambucaria the postcostal 

 sends off only two branches. 



The general colour of A. podaliriaria is very pale 

 cream-colour, the fore wings having three transverse 

 narrow brown bars across them, the first before the 

 middle, the second behind the middle (interrupted 



