THE ENTOMOLOGIST. 141 



Callunae a dorsal series of triangles orange only : 5th, in pu- 

 pation ; B. Qiiercus forms a smaller and yellower cocoon, B. 

 Callun.TB a larger and browner cocoon : 6th, in the colora- 

 tion of imago ; the wing-rays of B. Quercus, in passing 

 through the pale band of the wing, assume its colour ; in B. 

 Calluna? they are darker than the band ; in B. Quercus the 

 lower extremity of the band has a direction towards the abdo- 

 men, in B. Callunae its direction is towards the anal angle of 

 the wing ; this holds good both in fore and hind wings, more 

 especially in the latter : the males of B. Quercus have a fer- 

 ruginous-brown colour, those of B. Callunae are umber- 

 brown ; B. Quercus is the smaller, B. Callunae the larger, 

 insect. — Edward Newman. 



Description of the Larva of Hyhernia rupicapraria. — The 

 eggs are laid in February, on the trunks and twigs of Cratae- 

 gus oxyacantha (whitethorn), Prunus spinosus (blackthorn), 

 and less commonly of Quercus Ilobur (oak) ; the larvae 

 emerge in April, and, wandering among the twigs, are ready 

 to begin eating as soon as the leaves expand : they grow 

 rapidly, and have attained their full size by the end of May 

 or beginning of June. The full-fed larva generally rests 

 with both feet and claspers attached, and the back arched. 

 The head and body are of nearly equal width, the head not 

 conspicuously notched on the crown ; the body velvety and 

 without humps or warts. In colour the variation is extreme ; 

 the head usually semitransparent apple-green ; the more 

 usual colour of the body glaucous-green, approaching to 

 white on the dorsal surface, and to apple-green on the ven- 

 tral surface ; the white appearance of the back is partially 

 due to the presence of whitish stripes, of which the more con- 

 spicuous pair extend on each side from the head to the anal 

 extremity, and divide the dorsal area into three nearly equal 

 parts : the other white markings are irregularly arranged in 

 waved linear series, often imparting a reticulated appearance 

 to the surface ; at each interstice of the segments adjoining 

 the principal white stripes are blotches oi darker or olive- 

 green : in the varieties, some of which are extremely beauti- 

 ful, all the parts usually pale green have become extremely 

 dark bottle-green or almost black, the white markings re- 

 maining almost unaltered, and being thrown up in strong 

 relief by the contrast : the spiracles are extremely small and 



