426 



ward. Antennae inserted rather close to the oral margin and well 

 separated by the facial ridge, the distance between the sockets being 

 about one-fourth less than the width of the frons ; scape compressed 

 linear, slightly widened at the middle and excluding the radicle about 

 four times longer than wide ; pedicel thicker at apex than the basal 

 funicle joints and nearly as long as the first three of these combined; 

 funicle increasing gradually in width distad. the first four joints 

 subequal in size, the first being slightly longer than thick, the fourth 

 slightly thicker than long, last two funicle joints larger and sub- 

 quadrate; club large, oval, practically as long as the entire funicle and 

 twice as wide as the preceding joint, its first joint distinctly longer 

 than either of the following two. 



Thorax strongly convex above, yet somewhat wider than its depth ; 

 pronotum strongly arcuate, the visible part very short ; mesoscutum 

 more than twice as wide as long, its basal margin slightly produced 



Figs. l8 and 19, Xcsinatia flai'ipcs. female antenna and mandible. 



medially in a I)road curve between the tips of the axillae ; the latter 

 rather small, distinctly separated medially and about twice as wide as 

 long ; scutellum large, .strongly convex throughout, the apex well rounded, 

 the lateral margins but little elevated and hardly declivous; propodeum 

 very short medially, but triangularly enlarging at the sides, the meta- 

 pleura small. Wings reaching far beyond the apex ci alxlomen and 

 about normal in width ; the di.sk finely, closely ciliated, the area below 

 the submarginal vein with coarser, longer cilia arranged in about five 

 oblique, transverse rows and with a sixth row parallel and close to the 

 vein ; marginal vein falling somewhat short of the middle of the disk ; 

 speculum not quite reaching to the stigmal vein, greatly and triangularly 

 widening below, and above on the distal side where it becomes suddenly 

 narrowed with parallel sides it is guarded by a row of five cilia, which 

 are hardly longer than others of the disk but much thickened at base ; 

 submarginal vein set with about twelve moderately long, slender bristles. 

 Cheeks and mesopleura with microscopic reticulations faintly im- 



