172 LEPIDOPTERA. 



blue-black, siDotted with steel-blue. Hind wings smoky- 

 black with similar cilia. Female a very little more distinctly 

 marked. 



Undersides of all the wings leaden-black ; costa of the 

 fore wings dotted with white. 



On the wing at the end of May and in June. 



Larva apparently unnoticed. I reared a single specimen 

 of the moth from among a lot of cones of spruce-fir gathered 

 when working out the life history of Catercmna tcrchrclla in 

 Norfolk, but the mode of feeding could not be ascertained. 

 Mr. Warren is of opinion that it feeds in some measure on 

 Scotch fir. Abroad it is believed to feed on silver fir. 



This pretty little species was first noticed here by Lord 

 Walsingham in May 1878, several specimens having then 

 occurred at Merton, Norfolk, flying in the sunshine about 

 4 o'clock in the afternoon around Finns cephalonica. A few 

 years later it had extended itself into Suffolk, and had 

 begun to frequent the plantations of spruce and Scotch fir. 

 More recently it has been found in Essex, Herts, Middlesex, 

 Berks, Surrey, Kent and Hants. So far as I know this is 

 the extent of its present distribution with us, but having 

 made itself at home it will probably extend much further. 

 Abroad it has a considerable distribution through Germany, 

 Austria, Bohemia, Brunswick, Livonia, Dalmatia, Sweden, 

 and Asia Minor. 



2. A. cosmophorana, Tr. — Expanse f to i inch (9-12 

 mm.). Fore wings black-brown, with two slender, bright 

 silvery transverse stripes, followed by some similar costal 

 streaks. 



Antennae, palpi, head, thorax, and abdomen leaden-black. 

 Fore wings rather narrow, costa almost straight, apex 

 bluntly rounded, hind margin straight and oblique ; olive- 

 black or black-brown, irrorated, except at the base, with 



