SERICORIDA^—ANCH J 'LOFERA. 121 



Underside of the fore wings leaden brown ; of the hind 

 white. 



On the wing in June and August, in two generations. 



Larva unknown. 



This pretty little species seems with us to be confined to 

 fens, and to their wettest portions. Here it hides during the 

 day among the shorter herbage, and can scarcely be induced 

 by aoy disturbance to show itself at that time. Just before 

 dusk it begins to move, but then only takes short flights and 

 shows no especial preference for any plant, or any indication 

 which might lead to a discovery of its food at an earlier 

 stage. First noticed and described as a new species in the 

 year 1871, having then been found in the fens of Norfolk 

 and Cambridgeshire. No previous notice of it seems to exist, 

 even as a supposed variety of the last species, and the only 

 other suti'Sestion of its existence with us, so far as I am 

 aware, is a notice by the late Mr. John Sang, of his discovery 

 of specimens in an extremel}^ marshy spot in Durham ; with 

 regard to this capture Mr. J. E. Robson writes me : " it 

 appears to be just the place for this insect ; there are deep 

 water holes with swampy land between," also that the capture 

 of this species is twice entered in Mr. Sang's diary. The 

 greatest possible interest attaches to the occurrence in any 

 new locality of a species so exceedingly restricted in its dis- 

 tribution. I know as yet of no other locality in the United 

 Kingdom, and abroad only that it occurs in Germany. 



10. A. derasana. Huh. — Expanse i to | inch (12- 

 16 mm.). Fore wings shortly and bluntly hooked ; very pale 

 grey, with a large, rich chocolate dorsal blotch, rounded 

 above ; and beyond a bright red, flattened, triangular blotch 

 extending to the apex. 



Antennae and palpi dull brown ; head and thorax chocolate 

 red, but the shoulder lappets white ; abdomen silvery-grey. 



