218 



Annals of the Carnegie Museum. 



whole length of 3, and for nearly the whole length of 4-7, excepting 

 for the basal tenth of each ; this brown widens posteriorly on each 

 segment reaching up on the dorsum, but is not confluent with the brown 

 of the opposite side, except at the intersegmental articulations. 8-10 

 similarly marked, but the mid-dorsal yellow is narrower, and may not 

 reach to the hind end of each. Sides of all the abdominal segments 

 inferiorly and the sternites of 8-10 yellow ; sternites of 3-7 blackish. 

 Inferior lateral margins of 8 and 9 enlarged ; that of 8 convex, especially 

 near the posterior end, and denticulated; that of 9 hardly convex, almost 

 straight, not denticulated. Hind margin of 10 convex and entire me- 

 dially, its inferior lateral angle on each side with a tuft of brownish- 

 yellow hairs and folded under and applied against the sternite. In 

 dorsal view 10 is constricted at mid-length, its hind end wider than its 

 front end. 



Superior appendages longer than 10, subequal to 9, brownish at base, 

 blackish at apex, yellowish within. In dorsal view each appendage is 

 almost straight for its proximal two-thirds, but decreases gradually in 

 width, especially on the inner side ; distal third strongly curved inward 

 (mesad); apex rounded, and preceded on its inner side by a distinct 

 finger-like process, which falls short of reaching the level of the apex 

 by more than its own length ; at about half length the inner surface 

 bears a small blunt tubercle nearer the upper edge of the appendage. 

 In profile view each superior appendage is nearly straight in its proxi- 

 mal two-thirds, curved rather strongly down in its distal third ; apex 

 moderately acute ; in the proximal fourth the appendage decreases 

 greatly in thickness, especially on its upper surface, while the lower sur- 

 face bears a well-marked rounded tubercle. 



Inferior appendage very short, not reaching to more than the level 

 of one-tenth of the superiors. 



Legs greenish-yellow ; a supero-external femoral stripe ; most of the 

 tibiae (except their proximal superior portions) and the tarsi black. 



Wings slightly clouded with obscure yellowish ; stigma pale ochre ; 

 costa yellow anteriorly ; other larger veins brownish ; internal triangle 

 of hind wing free ; the other three triangles two-celled (3-celled in the 

 discoidal triangle of one front wing) ; front wings with 16-19 ante- 

 nodals, 9-12 postnodals ; at most three rows of cells between Cu 2 ( = 

 inferior sector of the triangle of de Selys) and the hind margin. Hind 

 wings with 4-5 rows in the same area. 



Abdomen 37-38 ; hind wing 28-29 mm. 



