TRIFID^. 139 



3. li. pallens, Z.— Expanse 1^ to U iucli. Thorax and 

 abdomen moderately stout; fore wings narrow and rather 

 lono-, bluntly pointed, whitish-drab, reddish-drab, or pinkish- 

 drab, with the nervures distinctly white ; hind wings white 

 or greyish-white. 



Antenna3 of the male simple, almost imperceptibly ciliated, 

 whitish-drab ; palpi short, moderately tufted, brownish-drab, 

 apical joint depressed ; head brownish-drab ; eyes covered 

 with minute red-brown hair points ; lashes at the back black ; 

 thorax rather loosely covered with long scales, drab in front, 

 paler at the back ; fascicles white ; abdomen pale drab, the 

 basal segments covered with long white hair-scales ; lateral 

 and anal tufts whitish-drab, the latter rather broad and con- 

 spicuous. Fore wings somewhat narrow and bluntly pointed ; 

 costa very faintly arched, apex bluntly angulated ; hind 

 margin oblique, straight to below the middle, then rounded 

 off; dorsal margin faintly curved; colour pale yellowish- 

 drab or pinkish-drab ; all the nervures conspicuously 

 yellowish-white ; between them are very much more obscure 

 parallel white lines ; at the outer edge of the discal cell is 

 a black dot, and sometimes one or two more are placed on 

 nervures half-way between it and the hind margin ; no other 

 markings except that a paler shade lies along the upper side 

 of the median nervure ; cilia whitish-drab. Hind wings 

 rounded, white ; sometimes faintly shaded \r\\\\ pale smoke- 

 colour, or the nervures indicated in the same; cilia pure 

 white. Female very similar but with a stouter abdomen and 

 a very narrow anal tuft. 



Underside of the fore wings whitish-ochreous ; discal cell 

 faintly clouded with smoke-colour; beyond it is a dusky 

 black longitudinal streak. Hind wings white, faintly dusted 

 with drab, and with the nervures tinged with brown. Body 

 and legs pale drab. 



Variation is mainly in the lines already laid down — from 

 pale yellow-drab to red-drab. Those of the deepest red are 

 apparently found in Ireland, some of them being of a terra- 



