VADE MECUM. 67 



broadly black brown ; nndemcatb, the disk of a very pale 

 tawny orange colour, grcenisli at tlie tip ; tlie middle spot 

 black, and a series of black spots, the anterior ones ol)literated 

 in the posterior part of the wing. The secondary wings 

 above, pale orange, with a narrow black fringe or margin ; 

 with a central spot scarcely discernible of a deeper orange, 

 and blackening at the inner sides ; a ferruginous oblong spot 

 in the middle of the anterior margin, and a series of dark 

 points mark the posterior part of the wing. Underneath 

 greenish with a central sesquialterous eyelet, with another 

 near it, with a silver pupil and ferruginoas iris. The female 

 differs from the male, in having above, a series of yellow 

 spots on the black fringe, and underneath, in five black spots 

 or dots in the primary wing, and a series of faint ferruginous 

 dots in the posterior parts of tlie secondary wings. 



Caterpillar. Of a dull green with a white longitudinal 

 stripe on each side, dotted with yellow and blue. 



Chrysalis. Green, with yellow lateral stripes. Wing- 

 sheath marked with black lines. 



Observation. Mr. Duncan states that it seems to prefer 

 the vicinity of the sea, but it is also fonnd in the midland 

 counties. 



COLIAS HELICE, WHITE CLOUDED YELLOW. 



Lewin, pi. 33,/. 3,4. 



Butterfly. The disk of the primary wings nnequally white, 

 with the base blackening a little ; a middle spot and unequal 

 broad fringe or margin black, in the fringe one or two wliite 

 spots ; underneath almost similar to the female of C. Ediisa, 

 but the disk is white, instead of pale orange. The secondary 

 wings above, whitish, the middle spot tawny orange, and the 



