TRFFID^ 105 



Midlands ; and probabh' all over South Wales, since it has 

 been taken near Swansea and at Pembroke. Also existing 

 more locally, yet sometimes abundantly, in Berwickshire, 

 Roxburghshire, the Clyde Valley, Midlothian, Perthshire, 

 Bute, Fife, Aberdeen and elsewhere ; according to Dr. F. B. 

 White, throuf?hout Scotland to Sutherlandshire, and even in 

 the Hebrides, though there scarce. In Ireland near Dublin, 

 Westmeath, Kildare, Kerry, Sligo, Mouaghan, Tyrone, 

 Armagh, Donegal, Londonderry, and commonly near Belfast. 

 Abroad it has an extensive range through Central Europe, 

 Northern Germany, Finland, and the mountain regions of 

 Central Asia. 



3. T. concolor, Gn. ; extrema, St<iv(l. Gat. — Expanse 

 1 inch. Fore wings rather truncate, shining, bone-white ; 

 second line neatly indicated in black dots ; hind wings pale 

 smoky-grey. 



Antennae of the male short, rather stout, simple, with 

 hardly perceptible ciliation, light brown; palpi loosely 

 tufted, light brown, apical joint white ; head yellowish- 

 white, tufted, a channel across the face just beneath the 

 antennee separates the tufts; thorax narrow, thickly but 

 loosely tufted with long dull white scales ; collar rather 

 erect ; fascicles white ; abdomen whitish-brown with ex- 

 tremely small lateral, and large anal tufts, the latter tinged 

 with yellow. Fore wings short, rather truncate; costa 

 arched at the base and faintly curved beyond ; apex bluntly 

 angulated ; hind margin perpendicular to below the middle, 

 then bent and oblique to the anal angle ; dorsal margin 

 gently curved and neatly ciliated ; colour smooth soft bone- 

 white, with the faintest possible smoky-black or yellowish- 

 brown shading between the nervures ; first line usually 

 absent, but sometimes faintly hinted at by a small black dot 

 on the subdorsal nervure, and one, more obscure, on the 

 median ; second line very neatly indicated by a row of small 

 rather elongated dots on the nervures beyond the middle, 



