258 LEPIDOPTERA. 



band very broad from the apex to the middle, theuce tapering 

 to the anal angle, irregular in its inner margin, but very 

 little excavated ; cilia white. Female similar. 



Underside of the fore wings smoky-black with large white 

 bars, one at the base, another part way from the costa to the 

 dorsal margin, the third complete, though very narrow toward 

 the dorsal margin ; apical region also dusted with white. 

 Hind wings white from the costa to near the middle, thence 

 rosy-crimson streaked with white ; black bands nearly as on 

 the upperside, but the inner more slender. Body and legs 

 dusky white, the fore tibite barred with black-brown. 



On the wing in August and September. 



Larva paler or darker yellow-grey or yellow-brown 

 sprinkled with minute black dots, the raised dots on the 

 back yellow ; on the eighth segment is a lenticular elevation, 

 bright yellow, narrowly edged with black ; on the eleventh 

 segment another elevation, doubly pointed, yellow-brown ; 

 spiracles white, ringed with black ; the fringe of hairs short, 

 whitish ; head divided, rather heart-shaped, yellow with a 

 browner edge. 



May and June on willow and poplar. (Dr. Hofmann.) 



Pupa brown, with a blue powdering. (Hofmann.) 



This excessively rare species can hardly be regarded as 

 other than a casual migrant with us. Two specimens 

 only are satisfactorily known to have been taken in this 

 country ; the first at sugar on the trunk of an elm near 

 Brighton, on the 24th September 1875, by Mr. A. C. Vine; 

 the other in a trap set to catch and destroy wasps in a garden 

 at Corfe Castle, Dorset, by Mr. Eustace R. Bankes, on Sep- 

 tember 12th, 1892. Abroadit is found in France, Belgium, 

 Germany, Northern Italy, Southern Russia, Armenia, and 

 Tartary. 



[C. elocata, Msp. — This, which at one time was recorded 

 as a British species, is not to be confounded with C. electa. 



