TRIFIDJE. 131 



beea taken from that time to the present ; indeed there are 

 good reasons to hope for its continuance there. About 1890 

 it was discovered by Dr. F. D. Wheeler to be also an inhabi- 

 tant of the Norfolk Fens, though to all appearance very local 

 there ; and it has been taken by Lord Walsingham nc^ar 

 Merton, Norfolk. Beyond the counties of Norfolk, Cam- 

 bridge, and Huntingdon I find no certain record. Abroad it 

 ranges through Holland, Denmark, Northern Germany, 

 Austria and Hungary. 



Genus Si. LEUCANIA. 



Antennte ciliated ; eyes strongly hairy, with lashes at the 

 back but usually prostrate ; thorax stout, smooth, usually with- 

 out crests ; abdomen not crested or with one or two minute 

 tufts ; fore wings usually of rather even width, and with the 

 ordinary pattern of markings obscure or absent, pale drab or 

 brown ; hind wings with vein 5 excessively slender, often 

 hardly perceptible, arising from the middle of the cross-bar. 



Lakv,e naked, smooth, of pale colouring with abundant 

 fine longitudinal lines ; upon grasses, feeding externally 

 at night ; hiding in the daytime in the grass-tufts close to 

 the earth. 



Pup^ subterranean. 



Not an easy genus to tabulate — 



A. Fore wings drab or brownish-drab. 



B. Fore wings with a black streak from the base. 



C. Fore wings yellow-drab, divided longitudinally by a 



white line ; hind wings white. L. liitoralis. 



C'-. Fore wings brown-drab divided by a longitudinal 

 clouded brown-black stripe ; hind wings white, 



Z, putrcscens. 

 G'K Fore wings dull drab, black lines in the discal cell and 

 beyond the middle ; hind wings dark. 



L. comma. 



