SERICORID^—RETINIA. 33 



C^. Fore wiugs short, blunt, markiugs dull brown, iu straight 

 bands. E. sylvcstrana. 



A^. Fore wings silvery-brown, 



D. Markings irregular, deeper brown. IL 'pinivorana. 



D-. Markings regularly reticulated, red-brown. 



R. retiferana. 



1. R. buoliana, Schif. — Expanse | to | inch (15-21 mm.). 

 Fore wings rich brick-red, with two smeared yellowish 

 shades from the base to the middle, followed by similar cross 

 lines. 



Antennte dark brown, dusted with white ; palpi and head 

 white above, orange-red at the sides ; thorax pale orange- 

 red ; abdomen hoary brown. Fore wings I'ather elongated, 

 costa flatly arched but without fold, apex bluntly rounded, 

 hind margin curved ; bright orange-red with paler shades 

 especially toward the dorsal margin, which is dull yellow ; 

 subcostal nervure also broadly shaded with dull yellow ; the 

 area from before the middle throughout is variegated with 

 silvery-white or pale yellow transverse lines, two of which, 

 beyond the middle, ordinarily in some part coalesce, pro- 

 ducing an inverted V or Y-mark, or one of these lines is quite 

 straight and perpendicular ; cilia white with a black basal 

 line. Female similar bat often larger and having the pale 

 lines more silvery and sharper. 



Underside of the fore wings smok}^ brown ; the costa pink, 

 with white dots ; hind margin white. Hind wings smoky 

 brown, with white cilia- 



On the wing in June and Svdy. 



Larva fleshy, sluggish, dirty red-brown ; head small, black, 

 shining ; dorsal plate divided by a pale line ; sides reddish- 

 brown ; underside paler ; anal segment crossed by a row of 

 dark spots ; legs tipped with black. (Wilkinson.) 



Autumn to April, May and even June on Scotch fir (Pwm«s 

 -si/lvestris), feeding on the young shoots, which it checks and 



VOL. XI. C 



