1 66 LEPIDOPTERA. 



appear also in May and June in an additional and earlier 

 generation. 



Larva. Dorsal region dark grey-green, almost blackish ; 

 lateral and undersurfaces yellow ; on the back lie on each side 

 three interrupted yellow longitudinal lines, of which the two 

 middle ones are the darkest ; raised dots black and distinct ; 

 spiracles black ringed with white ; on the sides of the second 

 and third segments are placed, in the situation of the spiracles, 

 two black tenon-shaped raised dots, over the feet is a dark- 

 margined paler irregular longitudinal stripe ; prolegs black. 

 Head yellow, dusted with black and with a black spot on each 

 side of the lower portion ; dorsal shield black, with three 

 yellow longitudinal lines. (Hofmann.) 



June and July, and sometimes in a second generation in 

 August and September, on Artcmesia campcstris and other 

 species of wormwood ; occasionally upon Chenopodium. 



Pupa red-brown with the wing-covers greenish. Not more 

 fully described. In a slight silken cocoon, in or upon the 

 earth. 



The moth is said to fly by day as well as at night, and to 

 frequent the blossoms of thyme. Doubtless it is attracted, 

 like its allies, by any suitable honey-producing flowers. It 

 is, however, so exceedingly rare in this country that we have 

 little or no practical knowledge of its habits. The first 

 recorded British specimen was that figured by Curtis and 

 Wood, and taken "on the banks of the Kiver Caldew, near 

 the village of Dalston in Cumberland, in July 1835," by Mr. 

 James Cooper, of Carlisle. The next capture appears to have 

 been of three specimens near Skinburnness, on the shore of 

 the Solway Firth, by Mr. R. R. Rothwell, then a boy at 

 school, at about the same date. One of these examples came 

 into the possession of the late Rev. H. Burney ; another is, I 

 believe, in the collection of the late Mr. J. Sidebotham, and still 

 treasured by his son, Mr. J. W. Sidebotham, M,P. The third 



