228 



large and arranged in an acute-angled triangle, the anterior one some- 

 what behind the center of the frontovertex, the posterior pair about one- 

 half their own diameter from the eye-margins, a little over their own 

 diameter apart and nearly twice as far removed from the occipital mar- 

 gin ; cheeks fully as long as the eyes and very strongly convergent to- 

 wards the mouth ; the face wider than long, strongly obliquely reflexed 

 and meeting the frons in an acute and carinated angle, which is nearly 

 transverse between the eyes and curved forward and downward in front 

 of the eyes to separate the face and cheeks for a short distance, upper 

 part of face rather deeply concave and divided by a broad median eleva- 

 tion ascending from between the antennae. The latter inserted far apart, 

 a little less than half way from the oral margin to the eyes ; scape com- 

 pressed, dilated beneath, triangular in shape, with the base narrow, the 

 apex broad, the apical corners rounded ; pedicel somewhat longer than 

 the first three funicle joints combined, ■ about three-fourths as wide at 

 apex as the sixth funicle joint, triangular with the apical ventral corner 

 produced forward and downward so that the ventral margin is noticeably 

 longer than the dorsal, and the apical margin slightly concave ; funicle 

 joints all very short and transverse or foliaceous as taken together, the 

 first joint the longest medially, the sixth much longer on the dorsal mar- 

 gin than any of the preceding, the first but slightly narrower transversely 

 than the sixth ; club very large, compressed and obliquely truncate on the 

 apical margin about one-half the way to the base, somewhat wider than 

 the funicle and as long as the funicle and pedicel combined, the sutures. 



Thorax considerably wider than its depth, the notum moderately con- 

 especially the one between the second and third joints, obsolete, 

 vex ; pronotum very short, transverse and somewhat arcuate , mesoscutum 

 not quite twice as wide as long, its posterior or basal margin nearly 

 straight ; axillae short, transverse, nearly or actually meeting medially ; 

 scutellum large, a little longer than the scutum or its own width, rather 

 broadly rounded at apex, the sides a little rounded and but slightly ele- 

 vated or declivous ; propodeum very short at the middle, rather long at 

 the sides and obliquely declivous from the base towards th^ apex, meta- 

 pleura oblique, rather small and somewhat narrowed below where touch- 

 ing the hind coxae. Abdomen slightly wider than the thorax and two- 

 thirds as long, strongly depressed, very broadly ovate or approaching 

 rotundity, widest just before the middle where the vibrissal plates are 

 situated, the basal corners rounded, the apex obtusely angled or rounded, 

 the ovipositor barely protruded. 



Legs rather short ; the middle tibiae not much enlarged at apex, the 

 spur as long as the first tarsal joint; the middle tarsi considerably stouter 

 than the other tarsi but not incrassate. cylindrical and not tapering to- 

 wards apex. A large central area of the disk of fore wings strongly in- 

 flated from below as in related species, the area reaching about one- 

 eighth of the wing-length from apex, its apical margin semicircular ; disk 

 finely, moderately densely ciliated, the basal part with a group of much 

 coarser or bristle-like hairs just before the speculum and extending a 

 vertex two and a half times longer than the widtli at the ocelli; the latter 



