136 THE ENTOMOLOGIST. 



orange or yellow tint ; others of a dull, dead, coppery colour, 

 much suffused with black scales, and with the dark transverse 

 lines showing a tendency to become obsolete ; in fact, the 

 distinctness of these lines is inversely proportional to the 

 depth of the ground colour, the pale specimens {lutescens) 

 have the lines very distinct, the darker ones obscure. I am 

 indebted to Mr. Dobree for the following interesting informa- 

 tion : — " Siberian specimens show the same variations of light 

 and dark colour, but some of the former strongly incline to grey, 

 and in others the small dark shade which surrounds the white 

 spot in our English specimens, is developed into a large and 

 conspicuous cloud of dark grey. To this form Dr. Staudinger 

 gives the name of grandis in his last catalogues." 



a. var. lutescens, mihi. — The ground colour of the anterior 

 wings of a brighter and more j^ellowish tint than in the type, 

 and but sparingly sprinkled with darker scales, the transverse 

 lines very distinct, and the fringe of a pale shining yellowish-red 

 colour, agreeing with the ground colour of the wings. The 

 posterior wings much paler than in the type, with a darker shade 

 in the centre. These pale forms occur very sparingly with the 

 type. I have them from the New Forest, Brentwood, &c. 



)S. var. ohscura, mihi. — The anterior wings of an obscure 

 smoky-grey colour, with a dull coppery tinge, much suffused with 

 dark scales. The white spot in the centre very indistinct, and 

 the transverse lines much blurred. The Eev. G. H. Eaynor has 

 in his collection a fine series of graduated forms of this variety. 



y. var. grandis, Btl. — " The small dark shade which surrounds 

 the white spot in English specimens is in some Siberian speci- 

 mens developed into a large and conspicuous cloud of dark grey. 

 Such varieties form the grandis of Staudinger's last catalogues, 

 by whom it is treated as a distinct species" (Dobree, in litt.). 

 The Rev. G. H. Eaynor has a variety in his collection, captured 

 at Brentwood, with this grey shade very distinctly developed. 



Leucania, Och., litliargyria, Esp. 

 This species varies much in ground colour, and its varieties 

 are difficult to deal with on account of the difference existing 

 between our specimens and Continental ones, and the fact that 

 Haworth considered the different shades of the species sexual, 

 the pale ones being males, the dark red ones females, whereas 



