120 LEPIDOPTERA. 



green. Segmental division yellowish. Spiracular line dull 

 green, very nariow and faint. Belly whitish, without lines 

 or markings. 



Var. 3. Ground colour pale primrose, slightly suffused 

 with green. Central dorsal line dull faint green, nearly 

 evanescent on the posterior segments. Subdorsal lines dull 

 faint green, much broken, having more the appearance of 

 detached spots. Spiracular line very faint pale yellow. 

 Belly whitish. 



V^ar. 4. Ground colour bright yellowish-green. Central 

 dorsal line pale olive, nari'ow. Spaces between central 

 dorsal and subdorsal lines bright yellow. Spiracular line 

 dusky green, faint and broken. Belly sea-green. Feeds 

 upon the flowers of the common Jhxglove, Digitalis pur- 

 jjurea, L. It spins the tip of the flower together and feeds 

 principally upon the stamens and occasionally upon the 

 corolla tube and unripe seed capsule. 



Hiibner has figured some larvse on Digitalis lutea as 

 Unariata, which may possibly have been this species. Dr. 

 Breyer infoims me that Dr. Roessler of Wiesbaden has 

 during the past summer taken some larvae on Digitalis 

 amhigiia, which he believes to be this species. Till the 

 present year the oeconomy of this insect was a mystery to 

 both home and continental Entomologists. Mr. flodgkinson 

 of Preston, who takes the moth tolerably freely in the Lake 

 District, has for the last two years been most indefatigable in 

 procuring eggs for Mr. Hellins and myself. Last year, 

 though we supplied the young larvas with every likely flower, 

 ihey refused everything and perished miserably of starvation. 

 This summer Mr. Hodgkinson, having mentioned to Mr. 

 Hellins that foxo^love was one of the commonest flowers in 

 the locality where the perfect insect occurred, Mr. H. put 

 a few foxglove bells with the other flowers suppHed to the 



