TRIFID.^. 249 



having been taken near Dublin, and two of these found their 

 way into the cabinet of the late Mr. F. Bond, and are still 

 retained by its present possessor, but no general credence 

 was obtained for the capture, and the results of many suc- 

 cessive years' work have not tended to confirm it. In my 

 opinion no reason at present exists for including this species 

 in the fauna of the British Isles. Abroad its range is very 

 wide — the greater part of the Continent of Europe, Asia 

 Minor, Tartary, China, and Japan.] 



6. D. conspersa, E?,]). ; nana, Staud. Cat. — Expanse l\ 

 to If inch. Fore wings slate-black, marbled with deep 

 black, and having large white blotches at the base, centre, 

 and apex ; hind wings grey-brown. 



Antennae of the male simple, finely ciliated, light brown ; 

 palpi rather small, black, shading to golden brown at the 

 sides, tipped with white ; head dusky white, obscurely barred 

 and spotted with black, and strongly tufted between the 

 antennae ; collar white, four times barred with black, some- 

 times rather obscured by dark scales ; thorax white ; the 

 shoulder-lappets broadly bordered on the inner side with 

 black ; top and back crests also tipped with black ; fascicles 

 yellowish-white ; abdomen glossy grey-brown, abundantly 

 covered toward the base with long white scales ; dorsal crests 

 one to four, small, obscure, and extremely fugitive ; lateral 

 and anal tufts spreading, rather darker grey-brown. Fore 

 wings rather pointed ; costa nearly straight ; apex bluntly 

 angulated ; hind margin oblique and very gently rounded ; 

 dorsal margin nearly straight ; colour deep dark slate-grey 

 or slate-black, marbled with black and also with bluish, and 

 in a minute degree with olive-yellow ; at the base is a white 

 blotch divided and edged with thick black streaks which 

 form a broken double basal line, attached to which, close to 

 the dorsal margin, is a more longitudinal thick black streak, 

 broadly edged toward the margin with white ; first line 

 obscure, double, a series of black curves ; second line also 



