/.A RENTIIK'E—CIDA RIA. 273 



in the most delicate lines. In one very pretty but unconiinon 

 form the fore wings, central band included, are tawny-red 1 r 

 chestnut, except the white lines ; in another, the central 

 band being black and rather narrow, the areas preceding, as 

 well as those following it, are richly tawny. Others, espe- 

 cially from the north, liave the otherwise black central band 

 divided by a large middle cloud of some shade of grey or 

 grey-white ; others again have this band and the other darker 

 areas ^)«J7*/f-browD, much set off' by slender white lines. 

 This last form seems to be especially found in the Orkneys, 

 while in the Hebrides the richest tawny forms seem to 

 prevail. Those from Shetland are extremely beautiful, their 

 fore wings rather narrower than usual, but the banding and 

 intermingling of black, brown, tawny-white, and grey, most 

 exquisitely arranged. In South "Yorkshire a black banded 

 variety is found in which the remainder of the fore wings 

 is almost wholly white and the hind margin almost destitute 

 of markings. The form in which the central band is white 

 and there is much marbling of grey lines and tawny colour- 

 ing beyond it was formerly described as a distinct specie.-, 

 under the name of innriiKiratd. 



On the wing in .luly ,nnd August, usually in Init a single 

 generation. 



Lakva long and slender, rather more cylindrical than that 

 of ('. rnasafd. which it otherwise resendiles, but with the aunl 

 points moi-e blunt, and much more dull in colour; palp 

 yellowish or whitish-green ; dorsal line dark green, bordered 

 by a space paler than the ground colour ; subdorsal lines 

 dirty white ; at the middle segmental folds, just above the 

 spiracles, are six or seven pale oljique streaks; s]iiracular 

 line green with a yellowish thread running throughout 

 its length; raised dots and spiracles white; segmental folds 

 yellow; anal points sometimes very iiale ]iink, sometimes 

 pale green. When newly hatched yellow, nearly as yellow 

 as the pollen of the flowers of the wild strawberi-y. (Rev. 



vol.. \I1I. ,< 



