470 



to base; proximal segment of the labial palpus liroad, black, the 

 palpiger short, al)iiut one-half the length of the first segment measured 

 from the point of articulation to the base of the second segment, the 

 fixed hook nearly as long as the distal segment of the palpus ; antennae 

 black ; clypeus and labrum metallic green or black ; front, together 

 with the clypeus and lalirum, thinly clothed with Ijlack setae; eyes 

 black or slate-colored. 



Thorax green above, black below ; pronotum with the caudal 

 margins entire, the caudal lobe convex and projecting caudad and 

 dorsad ; procpimeron distinct ; cephalic portion of the mesoprescutum 

 subtriangular, depressed ; dorsal carina distinct, black ; paraptera sub- 

 quadrangular, the caudal margins emarginate on the lateral third; 

 metepimera broader ailjacent to the wings; ventral portion of the 

 metepimera and the intersternum wholly black and subshining; legs 

 black, the setae also black and longer than the space between their 

 bases; anterior femoral setae fourteen or fifteen on each side; tarsi 

 black; wings very dark, almost opacjue, and about one-third as wide 

 as long; stigma wanting; antenodal cross-veins twenty-seven. 



' Abdomen nearly cylindrical, glabrous and faintly striated trans- 

 verselv ; superior anal appendages long and black, tiic lateral surfaces 

 tuberculate, the mesal surfaces emarginate at about the middle ; in- 

 feriors nearly as long as the superiors, straight and with a small apical 

 hook directed mesad (Figs. 139,139a). 



Female. — Color, metallic green. 



Head not essentially different from that of the male. 



Thorax : wings pale brown, darker at the tips, transparent ; stigma 

 present, white; antenodal cross-veins 23 to 24. 



Abdomen much shorter than that of the male; anal appendages 

 consisting of conical superiors more than twice the length of the blunt 

 inferiors; ovipositor (Fig. 109) with broad lateral valves reaching 

 about to the apex of segment ten, the prostyles rod-like and slightly 

 curved. 



Measurements 



- Length, S 1 .46 mm. 



Length, 2 41 mm. 



Length of abdomen, $ 38 mm. 



Length of abdomen, 9 32 mm. 



Length of hind wings, $ 29 mm. 



Length of hind wings, 9 30 mm. 



Width of hind wings, S 10 mm. 



Width of hind wings, 9 10 mm. 



