98 



BRITISH BUTTERFLIES. 



northern insect, but the term is scarcely pre- 

 cise. It occurs abundantly in the extreme 

 south of Ireland ; Mr. Birchall informs me 

 that this insect is especially common in the 

 counties Galway, Mayo, and Kerry. The 

 Honourable Miss Lawless says it is ex- 

 tremely abundant in the bogs of Connemara. 

 Mrs Battersby has taken very fine specimens 

 in the Cromlyn bogs about Rathowen; and I 

 have myself had the pleasure of taking it 

 in the county Donegal. It has not been 

 observed in the Isle of Man. In Scotland 

 it is far from uncommon. Mr. Young, of 

 Paisley, writing in the " Entomologists' 

 Weekly Intelligencer," on the 29th June, 

 1857, says that Davus has made its appear- 

 ance on the heaths and mosses in the vicinity 

 of Paisley, and is unusually abundant. Dr. 

 Buchanan White says that "it is not so 

 widely distributed in Perthshire as might 

 have been expected. There are many suit- 

 able localities near Perth where it ought to 

 occur, but as yet it has not been detected in * 

 them : it is common at Rannoch and in other 

 Highland districts, and is found at a consider- 

 able elevation : it appears to be abundant 

 throughout Scotland." Dr. White adds that 

 it occurs ou the Scotch mountains at an ele- 

 vation of upwards of two thousand feet. 



Orkney. I have a pair of Davus from 

 Orkney almost white Henry Doubleday. 



Shetland. Several specimens have been 

 taken in Shetland ; and one of these, obligingly 

 lent me by Mr. Birchall, is figured. It is the 

 third in the series. 



ROTHLIEB'S MARSH RINGLET. The wings 

 are rounded, and their hind margins simple : 

 the colour of the upper side is dull fawn-colour, 

 darker towards the margins ; and the hind 

 wings, especially towards the base, are darker 

 than the fore wings ; on the fore wings are 

 two, and on the hind wings four, obscure 

 circular smoky brown spots, each having a 

 pale circumscription ; in many specimens 

 an additional spot is visible on the costal 

 margin ; these spots form an irregular series 

 parallel with the hind margin, and have a 

 eemitransparent appearance; in fact, their 



presence may be due, in a good degree, to the 

 thin and semitranspai ent character of the 

 wing, which admits of the corresponding spots 



Eothlieb's Marsh Einglet (Ccenonympha Davus, var 

 Rothliebii). One Upper side, five Under sides. 



on the under side being seen through. The 

 under side of the fore wings is divided by a 

 straight pale bar which crosses the wing a little 

 beyond the middle into two distinct areas; the 

 basal area is fulvous-brown, tinged with rust- 



