180 LEPIDOPTERA. 



find a single specimen. A number of years again passed, but 

 in 1859 a good many were seen, and some captured, in the 

 same locality, and in 1860 it was found in some abundance ; 

 since then it has been found to inhabit several tracts of the 

 same Forest, and few years have passed without captures. 

 In 1874 it was discovered in plenty in St. Leonard's Forest, 

 near Horsham, Sussex, where it has often since been found, 

 by Mr. W. 0. Boyd and others, in greater plenty than in 

 the old Essex locality, so that most good collections are now 

 furnished with a series. These two are the only counties in 

 which it is known to me to occur in these islands. Abroad 

 it has a considerable range through Central Europe, the 

 Balkan States, Southern Russia, Armenia, and the moun- 

 tainous regions of Central Asia. 



(A. catena, Sovjerby. — As figured by Curtis this species is 

 about the size of A. Solaris, its fore wings creamy white with 

 faint grey shades, a loop-like streak from the costa near the 

 base, a broad crescent-like streak in the middle of the costa, 

 a row of black rings in a white stripe along the hind margin 

 preceded by a blue-black stripe edged with pale yellow, and 

 the cilia light brown ; hind wings pinkish-white with brown 

 nervures — a curious creature, more like a design for an 

 imaginary insect than an actual species. His description does 

 not quite agree: "Pale cream colour, shining; antennas 

 ochreous ; eyes brown ; superior wings sublanceolate with a 

 brown and grey spot at the base upon the costa, margined 

 with yellow, and having three pale lines across ; a triangular 

 one of the same colour at the middle of the costa ; the pos- 

 terior margin with a lilac-coloured fimbria, the internal edge 

 yellow ; close to the base of the cilia, which are yellowish- 

 lilac, is a line of white spots with lilac centres forming a 

 chain, and decreasing in size to the apical one, which is 

 oblong, that at the posterior angle being the largest, bearing 

 a dark purple spot with a lilac centre, and a semicircular 

 ochreous line on the outside. Inferior wings pearly white, a 



