254 LEPIDOPTERA. 



thus obtained. It is a regular inhabitant of the London 

 suburbs, and generally far more common there than else- 

 where ; jet tolerably frequent in the south of England from 

 Kent and Essex to Devon and Somerset ; also found in 

 Cambs, Herefordshire, Cheshire, Lancashire, and Yorkshire, 

 and taken by Mr. Robson in Dui-ham. In Wales I found it in 

 Pembrokeshire ; in Scotland Sir Thos. MoncriefFe reported 

 it from Moncrieffe Hill, Perthshire ; and it is on record in 

 Ireland from Cork and Sligo. Abroad it is recorded from 

 Holland, Switzerland, and Germany, but probably has a 

 wider range. It stood long under the name which has been 

 discovered to belong to the last species, whereby it now 

 proves that the name given to it as a supposed novelty in 

 1866 by Dr. H. G. Knaggs has really the priority of 

 claim. 



4. D. sequana. Huh. — Expanse f to | inch (9-12 mm.). 

 Fore wings short, black-brown, dusted with yellow and 

 white, dorsal blotch white, erect and somewhat squared. 



Antenna3 thick, black-brown ; palpi smoky-white ; head 

 and thorax glistening dark brown ; abdomen black-brown. 

 Fore wings short and rather narrow, costa folded up at the 

 base and flatly arched, apex bluntly angulated, hind margin 

 hardly oblique ; black-brown dusted with yellow, and having' 

 some white clouding at the base ; dorsal blotch very con- 

 spicuous, upright and almost squared, white ; costal streaks 

 pale yellow ;. from one of these a leaden lustrous line crosses 

 to the anal angle, and another, from a different dot, attains 

 the hind margin ; below it is a marginal row of three deep 

 black dots ; cilia shining smoky brown. Hind wings and 

 their cilia pale smoky brown. Female without the costal 

 fold, rather larger and blacker, with the markings brighter; 

 hind wings darker. 



Undersides of all the wings shining pale lead colour ; 

 costal dots of fore wings yellowish white. 



