CRAMBID^E—CRAMBUS. 99 



very glossy, with or without darker bronzy stripes between 

 the nervures. Hind wings white, or smoky white. 



Antennas of the male simple, shining, white or whitish- 

 brown ; palpi long, similar in colour ; head, thorax, and 

 abdomen silky j-ellowish-white or bi"onzy-white. Fore wings 

 elongated, not narrow, very blunt ; costa faintly arched ; 

 apex squarely angulated ; hind margin slightly curved and 

 short ; colour shining pearly-white, silky-white, or yellowish- 

 white, without central stripe or other markings ; cilia con- 

 colorous. Hind wings ample, rounded behind ; shining 

 silky-white with smoky shading ; cilia pure white. Female 

 similar. 



Underside of the fore wings shining smoky brown ; cilia 

 white. Hind wings smoky white. Body and legs pearly- 

 white. 



Variable both generally and locally. Along with the 

 type form, and sometimes in almost equal numbers, is one 

 having longitudinal stripes of bronzy-grey or bronzy-yellow 

 between the nervures of the fore wings, these stripes being in 

 some individuals narrow or tapering, but more frequently 

 broad and having the ground colour reduced to narrow lines 

 along the principal nervures, while other specimens become 

 wholly bronzy-yellow. With these changes in colour of the 

 fore wings that of the thorax and head corresponds. On the 

 moors and mosses of the north of England and in Scotland 

 a further change takes place, the specimens being uniformly 

 rather smaller, more regularly striped with darker bronzy 

 colour, the stripes more numerous, and the smaller nervures 

 in the outer portion of the fore wings only lined with white ; 

 the head and thorax some darker shade of bronzy -grey. This 

 form has long been known under the name of imrringfoncUus, 

 supposed to be a distinct species ; and still aj^jjears as such in 

 many collections ; but all intermediate possible varieties are 

 found — especially in the Eastern Counties — and there can, I 

 think, be no doubt that this form is merely a variety of the 

 present species. In the hill districts and on the mountains 



