34 LEPIDOPTERA. 



distorts in their growth, sometimes causing them con- 

 spicuously to droop. This is, however, only after hyberna- 

 tion. The very young larva feeds very obscurely in buds in 

 the same trees in autumn. It is said also to feed on Pinus 

 insifjnis, P. austriaca auS. P. cxcelsa. 



Pupa dark brown, very glossy; abdomen more dull and 

 paler, each segment roughened with two rows of minute 

 spines. In a cocoon in the infested shoot of fir, emerging 

 through a hole in the side of the drooping portion. 



The moth rests during the day in fir-trees, and if disturbed 

 dashes about the tree and soon settles again. In bright 

 sunny afternoons it is very lively and will sometimes fly 

 freely of its own accord. Its usual time of flight is however 

 after sunset and till dusk, when it is to be seen in numbers 

 dashing about over young firs, or around the larger trees. 

 Its flight is evidently continued into the night, since it comes 

 not infrequently to a strong light. Plentiful among Scotch 

 firs throughout the Southern and Eastern counties of 

 England and tolerably common in the remainder to York- 

 shire ; but I find no record for Scotland or Wales, and in 

 Ireland only in Antrim, but there surely must be need of 

 more extensive observation. Abroad it is found throughout 

 Europe and Siberia, and in the Korea. 



2. R. pinicolana, Bbld. — Expanse f to -^ inch (18- 

 22 mm.). Fore wings bright orange-red with numerous 

 silvery-white meandering markings which distinctly attain 

 the dorsal margin. 



Antennas dark brown, barred with paler ; palpi and head 

 white, dusted with orange-red ; thorax orange-red, the sides 

 white ; abdomen silvery-grey. Fore wings elongated, costa 

 flatly arched, apex and hind margin rounded ; bright 

 orange-red ; before the middle is a slender erect silvery- 

 white transverse stripe, broadly forked toward the costa, 



