530 



ncarlv to the paraptcra ; black stripe <if the mesopleural suture widest 

 just caudad of tlie mesiiifraepisternum, extending (mto and covering 

 about the dorsal third of that sclerite, the stripe continuous at the 

 caudal extremity with a narrow stripe extending ventrad along the 

 caudal margin of the mesepimemn to the interi)leural fold ; metapleur.'d 

 suture with a Iilack spot adjacent to the wing bases; remainder of the 

 thorax buff or blue; legs striped, buff and black, the coxae and 

 trochanters usually pale, the femora with broad dorsal stripes from 

 bases to apices; til)iae with dorsal strijies covering about half the dorsal 

 surface and including the cephalo-ventral row of setae ; tarsi and claws 

 pale, black at the tips, the claws very long; w-ings with nine to eleven 

 postnodal cross-veins and with AL arising near the fifth postnodal 

 cross-vein in the front wing and between four and five in tlie hind 

 wing. 



Abdomen black and blue or buff; terga i-6, inclusive, blue or 

 buff, except a small black liasal spot on one, a black apical ring and 

 ('<^rsal spot occup\-ing iialf the second and third terga. another covering 

 slightly more than half the fourth, two-thirds of the fifth and sixth, 

 and all of the seventh except the narrow lateral marginal stripes and 

 a basal ring; dorsum of the tenth tergum black; eighth and ninth terga 

 entirely blue or buff; sterna one and 3-8 with a median black line; anal 

 appendages (Figs. 194, 205) short, the superiors usually black, blunt, 

 and with a narrow notch on the dorsum cephalad of but near the dorso- 

 caudal angle; inferiors paler, the black apices directed strongly dorsad 

 and fre(|ucntly in contact with the superiors. 



Female. — Color similar to that of the male. 



Head similar to that of the male ; the postocular sjjots are, how- 

 ever, considerably smaller. 



Thora.x similar to that of the male. 



Abdomen with the dorsum of terga i-io with broad, dorsal dark 

 stripes, widened subajiically on segments 2-4 inclusive, the pale color 

 occupying the larger ])art of the lateral surfaces of all terga as lateral 

 stripes which are continuous with the broad uninterrupted basal rings 

 f>n segments 4—7 and the interrujited ring of the third tergiun; sterna 

 1-8 with a mesal black line from the bases to near-the apices, the eighth 

 sternum with a long ajiical seta ; lateral valves of the ovijiositor broad, 

 pale, the ventral margins serrate from apex nearly to base, the pro- 

 i-tyles darker on the apical half. 



Measuremenis 



Length, $ 33 mm. 



Longth, 9 32 mm. 



