46 I.EPIDOPTERA. 



represented by a pair of perpendicularly-placed black dots ; 

 a few faint and minute black dots lie along the hind margin ; 

 ■cilia shining pale buff. Hind wings moderately ample, the 

 hind margin curved, shining, smoky-white ; cilia rather 

 whiter. Female similar. 



Underside of the fore wings pale smoky-brown, very 

 glossy, darkest toward the costa. Hind wings very silky, 

 smoky white. Body and legs pale grey. 



On the wing from May till July or August. 



Larva obese ; head small, narrower than the second seg- 

 ment ; shining black or dark sienna brown ; dorsal and anal 

 plates similar ; ground colour dark olive-green, with a faint 

 purple tinge ou the dorsal area ; dorsal line darker ; spiracles 

 black ; ventral surface uniformly olive green ; some speci- 

 mens more decidedly green than others ; legs of the colour 

 of the head, but indistinctly ringed with white. (G. T. 

 Porritt.) 



Jul}' till September in the flowers of ragwort, drawing 

 them together by means of a tubular web in which it resides ; 

 when young eating the young shoots and excavating the axils 

 of the leaves, under the protection of a good deal of web and 

 much excrement. Mr. Eustace Bankes has reared it from 

 larv£e found, in Scotland, in the flowers of tansy. 



Pupa apparently uudescribed. 



The moth doubtless hides during the day among ragwort, 

 but is rarely seen at that time ; it flies at dark and frequents 

 the ragwort flowers, and will come at night to a light — some- 

 times to a gas-lamp at the road-side. Still probably often 

 overlooked from its resemblance to allied species, but cer- 

 tainly local, since its almost universally abundant food- 

 plant is only in very restricted localities, disfigured by the 

 action of its larvae ; where, however, this takes place the 

 disfigurement is usually great and its cause plentiful. 

 Apparently overlooked in these Islands till the year 1870, 



