468 



subtriangtilar, and depressed; paraptera subtriangtilar, each half with 

 the caudal margin sinuate and slightly emarginate on the lateral half ; 

 intersternum green; legs entirely black, the ventral setae much longer 

 than the distances between their bases, the setae of the front femora 

 twelve to fourteen in each row ; wings transparent, except the apical 

 third (Fig. 73), which is smoky, about one-third as broad as long, 

 slightly narrower than the wings of A. nmciilatmn ; stigma wanting, 

 antenodals of the front wing thirty-two. 



Abdomen green and blue ; sternum of segment ten and the apical 

 third of sternum nine buff-colored; anal appendages (Fig. 117) mostly 

 black, the superiors wholly black, long and curved, tuberculate on the 

 lateral surfaces, and slightly emarginate on the mesal margins at the 

 middle; inferiors black at the apex, paler at the base, nearly as long 

 as the superiors, and provided with a minute apical point directed 

 mesad; parameres of the ninth segment small (Fig. 118). 



Female. — Color, metallic green. 



Head : proximal half of the second antennal segment with a pale 

 lateral spot ; labrum buff-colored on each side, and with a median hour- 

 glass-shaped black mark; exposed portions of the mouth-parts, in- 

 cluding the mandibles and their trochantins, buff. 



Thorax : latero-ventral margins pale, including the cephalo- 

 ventral margins of the mesepisternum, caudal half of the mesinfraepi- 

 sternum, a stripe along the metapleural suture extending more than 

 naif-way from the cephalic margin to the wing bases, and the ventral 

 and cephalic margins of the metepimera; intersternum green; wings 

 slightly smoky, but not darker on the apical third, stigma present, 

 white. 



Abdomen metallic green and black, the apical portion dull and 

 paler below; tergum of segment ten with a prominent mesal ridge 

 which is produced into a long spine at the apex (Fig. no); anal 

 appendages consisting of conical superiors, double the length of the 

 blunt inferiors ; ovipositor reaching to the middle of the tenth seg- 

 ment, the prostyles extending to its apex (Fig. no). 



Measurements 



Length, $ 49 mm. 



Length, $ 44 mm. 



Length of abdomen, $ 38 mm. 



Length of abdomen, 2 34 mm. 



Length of hind win^s, $ 32 mm. 



Length of hind wings, 2 29 mm. 



"Width of hind wings, $ 9 mm. 



Width of hind wings, 2 8 mm. 



