ADOP^A. 23 



This Butterfly closely resembles the two last species, but is 

 darker, and of a smaller average size. The wings are of a 

 dark greenish fulvous, with a narrow curved black line in the 

 male. The female has a fulvous stripe in the cell (slightly 

 indicated in the male), and a curved row of fulvous spots 

 on the upper [)art of the disc beyond. The wings are pale 

 fulvous beneath, glossed with greenish; the antenna: are black 

 above, and fulvous below. 



The larva is pale green, with a darker dorsal line, edged with 

 yellovish, and divided by a pale central line, and wiih two 

 yellow lines on the sides. It feeds on CalcDnagrostis epigejos 

 and AnniJo pJiragmitcs on the Continent ; in England its 

 principal food appears to be Brachypodium pinnatum. It is 

 full fed in June, the Butterfly appearing a little later. The 

 pupa is pale greenish, and becomes pink before the Butterfly 

 emerges. Like the other species of the genus, the l:irv?e form 

 themselves silk-lined galleries among grass-blades, in which 

 they live, and finally assume the pupa-state in them. 



This is a rather sluggish, gregarious, and extremely local 

 insect in Central Europe ; in the Mediterranean district it 

 appears to be much more generally distributed. It is, how- 

 ever, generally abundant wherever it is met with. It is found 

 in sunny weedy places, and has some preference for a chalky 

 soil. In Britain, so far as is known, it appears to be absolutely 

 confmed to a few localities along the coast of Dorset, Devon, 

 and Cornwall, the twc principal ones, and those longest known, 

 being the Burning Cliff and Lulworth Cove in Dorsetshire. It 

 was first discovered in the last locality (from which it derives its 

 name) by the late Mr. J. C. Dale in 183 j. It has been reported 

 to have been taken at Shenstone, near Lichfield, and near Strat- 

 ford on Avon, in Warwickshire ; but these accounts have not 

 been confirmed, and are now discredited. Vet, with the cui ious 

 connection between the Faunie, to which I h.ave called alien- 



