SriGMONO TIDAl—DICHRORAMPHA. 257 



costa gently arclied and narrowly folded ; apex angnlated ; 

 hind margin curved and oblique; brown thickly dusted with 

 yellow atoms ; a broad undusted transverse band just before 

 the middle opens out into a faint similar dorsal thick blotch ; 

 beyond is a series of faint yellow costal dots, from two of 

 which leaden-blue lines proceed in a curved and obscure 

 manner to cross the wing through orange yellow or ferrugin- 

 ous spaces ; cilia dusky white, tipped with brown. Hind 

 wings black-brown, cilia a little paler. Female rather 

 darker, with the costa not folded, and with blacker hind 

 wings. 



On the wing in May and June. 



Larva bone white with light brown head.' (A. Thurnall.) 

 March and April on sneezewort (^Achillea ptarinica), 

 feeding in the underground roots or root-stocks. 



This is a very recent addition to the British fauna. 

 Specimens were taken by Mr. A. Thurnall in Epping Forest, 

 Essex, in the year 1892 and subsequent years. They were 

 found in an open marshy spot sitting on stems of grass 

 and rush, "up which they ran, after emergence, to dry their 

 wings. In the sneezewort plants growing in the same place 

 the larvas v/ere found " very snugly hidden away in neat 

 little cocoons attached to the bark of the plants," It 

 appears to have also been taken in Sussex, but these two 

 counties seem to be its only known localities in these 

 Islands. Abroad it is found in Germany, Switzerland, 

 Norway, and the Caucasus. 



7. D. plumbagana, Tr. — Expanse I inch (12 mm.). 

 Fore wings rather narrow and pointed, olive brown, marbled 

 with shining stripes and lines, and having a distinct lustrous 

 ocellus. 



Antenna3 pale brown; palpi, head, and thorax yellow- 

 brown ; abdomen shining brown. Fore wings rather narrow, 



VOL. XL R 



