214 



Annals of the Carnegie Museum. 



Dorsum of abd. segs. 8 

 and 9 : 



Abdominal segment io 



Superior appendages in 

 dorsal view : 



Do., in profile view : 



Branches of the inferior 

 appendage : 

 Apices of the nth seg- 

 ment (anal tubercle) in 

 dorsal view : 



Abdominal segment io 

 ( 9 ) , dorsum : 



Appendages 9 : 



Vulvar lamina J 



Discoidal triangle, front 

 wing : 



3-celled in 



2-celled in 



Internal triangle, front 

 wing : 



Discoidal triangle, front 

 wing : 



2-celled in 



3-celled in 



dark-brown not narrowed, 

 or narrowed posteriorly on 

 each ; 



reddish-yellow, only 

 slightly brown at extreme 

 base, or (in I $ ) with two 

 brown dorsal stripes for its 

 entire length ; 

 tapering more gradually to 

 apex, yellowish, no black 

 at base ; 



the external basal denticu- 

 lated carina distinctly 

 sinuate ; 



yellowish, more strongly 

 curved mesad at tips ; 

 blackish, more acute ; 



dark brown, narrowed post- 

 eriorly on each, or not nar- 

 rowed on 8. 



with a middorsal blackish 

 band from end to end. 



tapering less gradually, green- 

 ish, blackish at base. 



the same carina almost 

 straight 



blackish, less strongly curved 

 at tips, 

 greenish, less acute. 



obscure brownish, not 

 quite so dark as those of 

 8 and 9, almost equal in 

 length to 9 ; 



longer than 10, subequal to 

 9, yellowish, tapering to a 

 very acute apex ; 



about one-sixth as long as 

 9, bilobed almost to base, 

 each lobe wider than long, 

 its apical margin concave, 

 thus forming two angles, of 

 which the ventral-inner 

 one is obtuse and free, 

 while the outer-dorsal one 

 is applied against the ven- 

 tral surface of 9 ; 



19 wings $ ,9 wings 9 ', 

 7 " $,i wing 9 ; 



2 celled in all examples ; 



1 9 wings $ , 6 wings 9 > 



7 " $> 4 " 9 ; 



black, half as long as 9. 



longer than 10, shorter than 

 9, greenish-yellow, not taper- 

 ing much except at apex. 



about one-fourth as long as 

 9 but shaped as in intricatus. 



8 wings $ . 

 2 " $. 

 2-celled in all examples. 



9 wings $ 

 1 wing $ . 



