58 HADENA RECTILINEA. 



stripe, commencing next the head with a pale ochreous 

 or cream colour, blending gradually at the fourth seg- 

 ment into a grey-brown, and reappearing, similarly of 

 the same tint, on the twelfth and thirteenth segments, 

 and sides of the anal prolegs. 



Belly dusky-brown. Head blackish-brown and iri- 

 descent. 



The sides of these velvety-looking creatures are 

 clothed with an excessively fine and soft pubescence, 

 which more or less includes the ventral prolegs, and 

 assumes the most delicate tints of bright azure, accord- 

 ing to the angle of reflected light in which they are 

 seen. (W. B., March, 1865 ; E.M.M., June, 1865, 

 II, 20.) 



Oloantha solidaginis. 



Plate XOV, fig. 5. 



For the opportunity of making acquaintance with 

 this long-wanted larva I am indebted to the kindness 

 of Mr. George Norman, of Forres, who sent me two 

 eggs on the 25th of April last. These hatched in a 

 day or two, and the newly-emerged larvse were of a 

 dark slaty -green colour, with the head dark brown. By 

 May 4th they had attained to a quarter of an inch in 

 length, the ground-colour being purple, with the 

 dorsal and subdorsal lines pale grey, the (rather broad) 

 spiracular lines white, and the skin shining. By May 

 24th half an inch had been reached, and the ground- 

 colour had changed to a very dark chocolate -brown, 

 with broad bright yellow spiracular stripes, the 

 narrow dorsal line being then of a pale slaty-blue. 

 Several days after this one of the larvse died ; the 

 remaining one, however, fed on satisfactorily, and by 

 June 4th its colour had again considerably changed, 

 the ground being dark purplish-brown (darker on the 

 subdorsal than the dorsal region, which had a faint 

 pink tinge), the head dark brown, smooth and shining, 



