TRIFID.E. 97 



nervures ; second line more distinctly indicated by a row of 

 six or seven black dots or short streaks on nervures, in some 

 individuals followed by another row of similar small dashes, 

 or by two or three blacker dashes ; and there is the faintest 

 possible expression of a waved pale subterminal line ; orbi- 

 cular and reniform stigmata both obscurely indicated by 

 white dotted or complete margins ; extreme hind margin 

 dotted with black ; cilia brownish-drab. Hind wings rather 

 ample, rounded, pure white to the cilia, except an obscure 

 smoky-black squared central spot and a series of faint brown 

 streaks on the margin. Female rather larger, with the wings 

 longer and the apex more pointed ; anfcennfe threadlike, 

 abdomen rather stouter, otherwise quite similar. Under- 

 side of the fore wings smoky-white ; reniform stigma smoky- 

 black ; beyond it is a cloudy black spot on the costa. 

 Hind wings white ; costal and apical regions faintly dusted 

 with pale brown; central spot dusky; beyond it is a trans- 

 verse row of black dots and dashes on nervures. Body and 

 legs pale drab. 



Variable, and in rather more definite lines than is usual. 

 Perhaps the most frequent of these is the form named 

 hiinmctata by Haworth. In it the longitudinal fine lines 

 and the dusting are obscured or absent, leaving the fore 

 wings pale drab or whitish-drab, but both the upper stigmata 

 are conspicuous as black spots very nearly equal in size, 

 somewhat rounded, and without the white edging. Another 

 form, equally or more striking, is known as Wismariensis, 

 Schmidt; it has, along with these two spots, and partly 

 enclosing them, a broad, black, ill-defined stripe from the 

 middle of the base down the discal cell toward the hind 

 margin. These remarkable varieties occur in both sexes, 

 and appear at first sight quite like separate species ; inter- 

 mediates between them and the type form hardly seem to 

 occur, but the latter is sometimes exaggerated, the fine dark 

 lines and whiter inter-lines becoming more distinct, con- 

 nected and defined. 



VOL. V. G 



