UNICORN HAWK-MOTH. 145 



The caterpillar is at first yellowish-brown, but 

 afterwards becomes green, with two longitudinal 

 stripes of lemon-yellow on each side, a brown dorsal 

 band and numerous fine black lines across the back. 

 The anterior legs are yellow, the membranous ones 

 of a whitish colour, and the stigmata yellow sur- 

 rounded by a black ring. The caudal horn is like- 

 wise black. On the continent, in several parts of 

 which it is a common insect, it feeds chiefly on the 

 pineaster (Pinus pinaster). In this country it is 

 said to frequent the spruce and Scotch fir. The 

 moth is very rare in Britain, Colney Hatch Wood 

 and the neighbourhood of Esher being probably 

 the only localities in which it has been observed. 

 It certainly was never taken in Kavelstoii Wood, 

 near Edinburgh, by Mr. Wilson of the College, ;i*s 

 intimated by Dr. Leach, and it is probably through 

 some inadvertence that he states it to have been 

 taken there by himself. 



