40 PROCEEDINGS OF THE ACADEMY OF [Feb., 



femora; costal margin with a distinct arciiation in the distal third, 

 apex narrowly and very obliquely truncate, sutural margin nearly 

 straight; intercalary vein strong, median in position for the greater part 

 of its length but approaching the median vein distad. Wings ample 

 but rather narrow, the greatest width contained nearly twice in the 

 length; apex rather narrowly rounded. Caudal femora very slightly 

 exceeding the apex of the abdomen in the male, in the female falling 

 very little short of the same.^ in form moderately robust; caudal tibiae 

 with nine spines on the external margins. 



General color wood brown in the male, mars brown in the female, in 

 both sexes blotched and marked with clove brown or blackish. Head 

 dull in the female, the markings obscure and chiefly consisting of 

 postocular and arcuate occipital bars, the facial carinse being regularly 

 beaded and the plain surfaces punctate with the darker colors, eyes 

 russet, antennae wood brown with alternating segments generally 

 marked with bistre; head of the male nearly completely washed wdth 

 ecru drab, the dorsum more sprinkled with darker than the other sur- 

 faces, three occipital bars as w^ell as the postocular bars being developed, 

 while the pattern of the facial carinae approaches that of the female, eyes 

 as in the female and with a distinct dark continuation of the post- 

 ocular bar passing through them, antennae similar to those parts in 

 the female but the paler parts are inclined toward ecru drab. 

 Pronotum W'ith the dorsum of the general color, the median carina, 

 asperities and beading of the caudal margin of the darker color; 

 lateral lobes dark dorsad, pale ventrad, the two shades marbled 

 mesad and the margins beaded. Tegmina with a solid median and 

 proximal blotch on the costal area, while a third distal spot is faintly 

 indicated, intervals between the spots very light, sutural margin 

 with the venation infuscate, distal third of the discoidal field hj^aline 

 except for the finely lined veins. Wings with the fuscous band 

 placed very slightly distad of the middle and considerably narrowed 

 cephalad, of greatest width at the point where it touches the periphery 

 of the wing, here about one-fifth the length of the wing, and continued 

 very little toward the internal margin of the wing, spur distinct, thick, 

 extending slightly more than half way to the base of the wing; color of 

 the disk pale sulphur yellow in the male, very weak primrose yellow in 

 the female, apical portion hyaline except for the infuscation of a few 

 veins near the immediate apex. Abdomen and ventral surface sulphur 



* In this sex the abdomen is shghtly distended from the normal and deduction 

 has been made for this extension. 



