TRIFID.'E. 235 



occasionally be taken at light, but is never known to take 

 any notice of sugar or any similar bait. On the €oast it 

 hides in the daytime among rocks and on stones, especially 

 under the masses of Silcnc maritima, but ia not often found. 

 The dark var. cajysophila is taken freely in its localities 

 at dusk over the blossoms of the same plant, and later at 

 night may sometimes be found around the lantern of a 

 lighthouse. It was by this means that I had, personally, 

 the pleasure of discovering this beautiful form at the Bailey 

 Lighthouse, Hill of Howth, Dublin, in July 18G0. 



In its more ochreous variations, mainly in the form called 

 ocJiracca, and paler and rather darker shades, it is found 

 abundantly in the Breck-sand district of Norfolk and Suffolk, 

 and in less numbers, but still not uncommonl}^ throughout 

 those counties, Essex, Kent, Sussex, Surrey, Wilts, Bucks 

 and Herts, particularly frequenting chalk or sand districts ; 

 also in less numbers throughout the rest of the southern 

 half of England to Herefordshire, but becoming much more 

 rare in Staffordshire, Derbyshire, and Salop ; in Cheshire, 

 Lancashire, Yorkshire, Durham, and Westmoreland it 

 seems to be more attached to the coast, and there, in suit- 

 able places, not rare, but has assumed, as already shown, a 

 deeper colouring. In Wales it is not scarce, in its darker 

 varieties, in Pembrokeshire — indeed probably common on 

 the ranges of cliffs of that coast, where Silenc maritima 

 grows in enormous, and often inaccessible, masses ; in North 

 Wales it is recorded in Flintshire, and certainly has been 

 found on the rocky coasts. The forms found in the South of 

 Scotland have been commented upon ; they appear to be 

 met with in Roxburghshire, the Clyde Valley, and Perthshire, 

 but Dr. Buchanan White recorded it also on the East coast, 

 in the districts of the Tweed and Forth. The dark form, 

 var. c(q)soij1iila, appears to inhabit all the rocky portions of 

 the coast of Ireland, with its islands, and the Isle of Man, 

 wherever Silcne maritima is found, and in many parts to be 

 plentiful. Abroad, this last form is apparently confined to 



