539 



Thorax black, blue, and yellowish green ; pronotum black, the 

 cephalic lobe, a small spot on each median lobe, and the caudal margin 

 of the caudal lobe pale; proepimera and episterna pale, the noto- 

 epimeral suture indistinct ; paraptera black ; mesothorax with a broad 

 black dorsal stripe, the stripe covering about one-third of the meso- 

 supraepisterna on each side ; remainder of the thorax, including the 

 postcoxal areas, buff with the exception of small dark spots on the 

 nietapleural sutures near the wing bases; legs black and yellow, the 

 coxae and trochanters pale, darker on the cephalic surfaces; femora 

 each with a broad black dorsal stripe which frequently includes one 

 row of setae; tibiae with longitudinal stripes on the cephalic surfaces; 

 wings with about ten postnodal cross-veins in the front wing and eight 

 in the hind one; Mo arising between the fifth and sixth postnodal 

 cross-veins in the front wing and between the fourth and fifth in the 

 hind wing. 



Abdomen blue and black; terga i-io blue except a small basal 

 spot on the first, a hastate spot on the second, an apical spot and 

 marginal ring on the second to the fifth, the apical half or two-fifths 

 of the dorsum of the sixth, dorsum of the seventh (excepting a narrow 

 interrupted basal ring), and the tenth, which are pale; anal appendages 

 (Figs. 169,175) similar to those of caruucnlatuin and civile, but the 

 superiors differ (compare Fig. 169 with Figs. 176 and 179) in having 

 a smaller pale tubercle at the end and in being much wider proximad 

 of the tubercle. 



female. — Color, similar to that of the male. 



Head similar to that of the male. 



Thorax: mesostigmal plates (Fig. 226) similar to those of civile, 

 but the caudal margins concave, instead of convex as in the latter. 



Abdomen : terga i-io with broad dorsal dark stripes and basal in- 

 terrupted rings, the lateral margins pale ; anal appendages of the usual 

 type and the ovipositor pale, the ventral margins of the lateral valves 

 serrate. 



Measurements 



Length, $ 31 mm. 



Length, $ 31 mm. 



Length of abdomen, $ 25 mm. 



Length of abdomen, 9 24 mm. 



Length of hind wings, $ 17 mm. 



Length of hind wings, 2 18 mm. 



