TRIFID^. 139 



Galway, Sligo, Fermanagh, Tyrone, Armagh, Donegal, 

 Antrim and Londonderry. Abroad it is found throughout 

 Central Europe, the temperate portions of Northern Europe, 

 the South of France, the North of Italy, the Balkan States, 

 Southern Russia, Eastern Siberia, and the mountainous 

 regions of Central Asia. 



2. H. triplasia, L. — Expanse \\ to 1^ inch. Fore wings 

 rather blunt, blackish-brown ; base, and a band before and 

 beyond the middle, chocolate-brown ; on the transverse lines 

 and central markings are some deep black raised scales. 

 Hind wings smoky-brown, with the base, except the nervures, 

 paler. Spectacle marks bright light brown. 



Antennas of the male simple, minutely ciliated, brown ; 

 palpi rather slender, curved up, and rising slightly above the 

 head, black-brown, lower portion furnished with projecting 

 tufts of straight black scales, that on the second joint so 

 pointed as to make each palpus appear forked ; eyes brown- 

 black, with long, curled over, front and back lashes ; head 

 roughly tufted with erect scales, black-brown, a deep cross- 

 channel below the antennas cuts off the upper portion, which 

 is narrow and sharply ridged ; collar broad, bright light 

 brown, divided and bordered with black-brown, and within 

 so clouded as to simulate a pair of spectacles ; remainder of 

 thorax pale purple-brown, except a very large crest which 

 occupies the middle area, and is tall, most conspicuous, and 

 of a pale yellow-brown ; fascicles yellowish-white ; abdomen 

 dark smoky-brown, the basal segments covered with long 

 yellowish-white hair-scales, and the dorsal ridge furnished 

 with a series of black-brown crests, of which the third is by 

 far the tallest and most conspicuous ; lateral tuft spreading ; 

 anal tuft small. Fore wings not broad, bluntly pointed ; costa 

 very faintly rounded ; apex bluntly angulated ; hind margin 

 gently rounded and very obscurely crenulated, but hollowed 

 above the anal angle ; dorsal margin very slightly filled out ; 

 colour black-brown ; the basal space dull yellow-brown with 



