90 LEPIDOPTERA. 



by the late Mr. Henry Doubleday from a larva found in 

 Essex, sent by him to M. Guenee, and finally described by 

 the last-named writer under the name of E. prnioiain. This 

 specimen, the only one known, is still in Mr. Doubleday's 

 collection in the Museum at Bethnal Green, and in perfect 

 condition. It is very large — indeed extraordinarily so for 

 this species — more than double the size of the var. raUv uaria; 

 but after most careful and repeated study of it I feel 

 convinced that it is no more than a very large female of the 

 present species. It is of a pretty soft yellowish-brown colour 

 with the transverse rippled lines of a deeper brown. 1 have 

 seen a specimen under the same name, in another collection, 

 but it appears to be only the var. arci'itthita of E. lidvetlcarin. 

 On the wing in May and -June. 



Larva slender, tapering considerably toward the head ; 

 ground colour pale yellowish-green ; segmental divisions pale 

 yellow ; dorsal line dusky green ; down the middle of the 

 back is a series of Y-shaped, dusky green blotches, edged 

 with purplish-brown, and becoming confluent or merged in 

 the dorsal line on the anterior and posterior segments ; sub- 

 dorsal lines very slender and indistinct, dusky green ; 

 spiracular lines yellow ; between the subdorsal and spira- 

 cular lines is a row of small slanting purplish blotches; 

 dorsal region studded with very minute yellowish tubercles. 



Or — Back greenish-white ; dorsal and subdorsal lines 

 pink or rose-colour ; down the middle of the back is a series 

 of large rose-coloured, and rusty-red, goblet-shaped blotches, 

 becoming faint or merged in the dorsal line on the anterior 

 and posterior segments ; spiracular line waved, rose-colour ; 

 subdorsal and spiracular lines connected by a number of 

 slanting rose-coloured streaks ; undersurface pale sea-green 

 or greenish-white, with a central white line ; back studded 

 with numerous small white tubercles. 



Or — The whole of the back suffused with rose-colour ; 

 subdorsal lines yellowish ; dorsal blotches edged with yellow ; 



