NVMl'IIAIJNAK: I'OLVCOMA I'ACXrS. 



351 



in tlie costo-siih(!ostal interspace, ■\vliicli it (;ross(!s witli a siiallow curve opening in- 

 ward, and strilces the suljcostal at its first divarication; Avitliin tliis the wing Is crossed 

 infrccpiently by short, straiglit, transverse, Ijlaclcisli tlireads; tlie tip of the cell is 

 marl^ed l)y a heavy silver C similar to that in conuna, but generally more angular; 

 above, this fails of reaching the subcostal nervules and at its extremity has a slight 

 pointcid tooth directed outward, and at the outer extremity of its outer lobe, which 

 seldom tapers, it is usually thickened and then generally emits a similar tooth dir<;cted 

 toward the upper one, causing it sometimes to resemble rather a G than a C ; it is some- 

 times as broad as the tarsi and always approaches that size ; occasionally it is reduced 

 to an L precisely resembling that of its companion form gracilis ; there is a heavy, sub- 

 marginal series of nearly or quite connected, dull green lunules, closely foUoAving tlie 

 variations in the curve of the outer border, even including its strongest dentatifuis, and 

 distant from it by nearly an interspace's Avidth, distinctly edged Avitliin and Avithout 

 Avith l)lack. folloAved Avithin by pale, ashy gray, sublunate, rather smaller spots, and 

 shortly afterAvards by a slightly sinuous series of moderately large, roundish, dull 

 green spots, as far from the submargiual series as it is from the outer border, nar- 

 roAvly edged with black, and this by a similar, blurred, pale ring, and this, inAvai'dly at 

 least and broadly, by a fuscous cloud; the series extend from the inner border to the 

 upper subcostal nervule, the submarginal lunule of the costo-subcostal interspace 

 being continuous with it ; the uppermost spot and the submarginal lunule of the costo- 

 subcostal interspace are foUoAved interioi-ly by a slightly ashy or hoary cloud, and over 

 the rest of the outer half of the Aving are scattered short, inconspicuous threads of 

 dusky ferruginous ; the outer margin beyond the lunules is variegated with black and 

 Avhite and an admixture of a fcAV scales of a lively color, and next the very border is 

 tinged strongly, but least so in the middle of the border, AvithduU, broAvnishochraceous; 

 fringe of mingled l>la.ck and taAvny scales interrupted Avith white on the interspaces. 

 The $ differs in the coloration of the under surface of both Avings in having all the 

 contrasting colors subdued, sometimes but slightly, so as scarcely to be distinguished 

 at rtrst sight from the J , at others so greatly as to make them appear confused and 

 blended into a dull broAvn ; the C shaped mark of the centre of the hind Avings is also 

 slenderer and sometimes even faint. 



Abdomen above black, heavily covered Avith taAvny scales; beneath of adi;ll, grayish 

 broAvn in Avhich some yelloAvish and vinous tints occur. Male appendages (33 : IG) : 

 ui)per organ ; hook as in comma, but more curved and at base depressed, as long as the 

 body Avith a smaller basal tooth. Clasps strongly arcuate as vicAved from behind, giv- 

 ing tliem a smaller appearance than usual, but really twice as broad as long, the upper 

 portion of the hinder edge bent over iuAA^ard to form a small, inconspicuous, triangular, 

 rounded lobe ; basal process of upper edge bent and tAvisted at the extreme base so as 

 to be horizontal and depressed, curving inwards and a very little downwards in passing- 

 backward, crossing each other, very much larger than the clasp, slender and tapering 

 thx-oughout, but most so by the sloping of tlie outer edge of the apical fourth; apex 

 pointed; interior linger long and slender, equal, pointed, arcuate, traversing the 

 clasp a little beyond the middle. 



Described from 60 3 12?. 



Egg (64 :21). Grass green, of equal height and breadth, Avith from ten to thirteen, 

 usually eleven or tAvelve, vertical ribs I'unning from exti'eme base to extreme summit, 

 and inci'easing very gradually in heiglit in passing upward ; they are strongly com- 



