270 LEPIDOPTERA. 



Mr. Francillon, in Devonshire ; I possess a fine specimen 

 from the former locality." Mr, Haworth's description of the 

 insect is hardly definite enough to certainly indicate this 

 species ; but Stephens's description, and that of Professor 

 Westwood, with his figure, certainly refer to it ; moreover, 

 Haworth's specimen exists in the cabinet of Mr. Sydney 

 Webb at Dover. This is the only reputed British example 

 of the present existence of which I have any knowledge. 

 Its occurrence in this isolated manner is so contrary to the 

 known habits of the species, that it seems doubtful to me 

 whether a confusion has not arisen between some foreign 

 specimen and one of the whitish form of A. uhnata. The 

 evidence existing is, at any rate, hardly sufficient to warrant 

 the inclusion of this species in the Fauna of the British 

 Isles.] 



Genus 42. LIGDIA. 



Antennae simple ; palpi minute ; head smooth ; thorax 

 also smooth and small ; abdomen short, moderately slender, 

 smooth ; fore wings ovate, glistening, with the lines sharjjly 

 defined, and vein 5 originating above the middle of the 

 cross-bar ; hind wings broad, rounded, crenulated behind. 



We have only one species. 



1. Ij. adustata, Schiff. — Expanse 1 inch. Fore wings 

 ovate, white or creamy-white, with a basal blotch and broad 

 band beyond the middle of orange-brown, or black, set ofi* 

 with glistening blue clouds ; hind wings white, faintly rippled 

 with grey. 



Antennae of the male simple, ciliated, pale brown ; palpi 

 minute, pointed, dark-brown ; tongue moderately developed ; 

 head and thorax hardly rough, purplish-brown, the latter 

 bluntly tufted behind ; abdomen slender, white, clouded 

 along the dorsal region with pale purplish-brown ; tufts 

 small, white. Fore wings rather ovate ; costa much arched ; 



