CONTRIBUTIONS TO HISTORY OF THE BRITISH PTEROPHOUI. 147 

 A.CIPTILIA, Hub. 



Galactodactyliis, Hub. 

 (Plate III., Fig. 3.) 



Imago. — Expanse, 11-12 lines. Fore wiug white, sprinkled with 

 minute brownish scales towards apex ; a small blackish spot on the costa 

 beyond the middle, and a smaller spot a little below it, but nearer the tip. 

 A small black spot at the digital juncture, another towards the tip of inner 

 digit, and one between them on the inner margin ; there is also a small 

 blackish dot midway between digital juncture and base of wing. Fringes 

 white, tinged with dark grey round the tips, and with a very conspicuous 

 black patch in the fringes of inner digit. Tips of both digits acute, that of 

 the inner deflexed. Hind wing white, sprinkled with brownish scales ; 

 fringes white tinged with grey. Tip of 3rd feather-shaft black. Head and 

 thorax white. July. 



Larva. — Length, 5-6 lines; tapers towards anal extremity. Head 

 smaller than ^nd segment, whitish green, with light brown mandibles and 

 a black spot on each cheek. Ground colour pale pea-green ; segmental 

 divisions whitish. Dorsal stripe broad whitish, intersected by a median 

 interrupted line of the ground colour. Tubercles, dorsal, two on each seg- 

 ment, placed on the outer edges of the dorsal stripe, each with a tuft of 

 moderately long grey hairs ; subdorsal, one on the posterior edge of each 

 segment, with a few short hairs. Spiracular area, a wart on the middle of 

 each segment, button-shaped, transparent and very prominent, with a tuft 

 of long silky whitish hairs. Food, burdock (Arctium Lappa) ; eats holes 

 in the leaves from the under side. May. When the leaves of burdock 

 growing in or near woods are observed to have a riddled appearance, the 

 younger leaves should be carefully turned up and the under sides examined 

 for the larva of the " plume " under consideration. 



Pupa. — Pale green ; warts arranged as iu the larva ; hairs whitish, but 

 not quite so long as in the larval stage ; a short black bar or linear spot on 

 the 2nd-6th segments inclusive, most conspicuous on the 5th. May and 

 June. 



I have given May as the month for the larvte of this species, 

 but they may be found from the middle of March if the weather 

 is mild ; but of course they will be then ver}-^ immature. 



Plate III., fig. 3, burdock [Arct'uun Lappa) ; 3 a, larva ; 3 h, pupa ; 3 c, 

 imago of A. (jaiactodacUjlus. 



I am obliged to Mr. Walter W. Walter, Stoke-under-Ham, 

 Somerset, and to Mr. Mann, of Clifton, for kindly supplying the 

 larvae of this plume moth for figuring and description. 



