12 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.61. 



band, angulate forward in median line, near central part of sixth 

 tergite; ovipositor. 



Head narrower than thorax behind pronotum; face black finely 

 rugoso-pimctate with scattered pubescence on f rons and vertex ; line 

 from median ocellus to lower edge of clypeus nearly 1.5 times inter- 

 ocular space; malar space one-fifth length of eye; distance across 

 scapal furrows at base three times distance from margin of furrow 

 to eye ; spur between scapes prominent and rugoso-punctate like rest 

 of face; ej^es sinuate; median ocellus without transverse parallel 

 ridges on each side; space between lateral ocelli and eyes not differ- 

 ent in sculpture from rest of vertex; postocellar distance 1.5 times 

 ocellocular ; occipital carina prominent medially, disappearing behind 

 eyes (pi. 2, fig. 5); antennae robust 12-segmented ; scape about as 

 long as first three segments of flagellum; pedicel nearly as long as 

 first funicular segment; second funicular twice as long as first; 

 fourth and fifth subequal ; sixth to eleventh becoming stouter; twelfth 

 conical, 



Pronotum without transverse carinae, reticulate-punctate, narrower 

 in median line than mesoscutum; scutellum more coarsely punctate 

 than mesoscutum, the punctures becoming shallower toward hind 

 margin which is broadly rounded; lateral foveae of metanotum 

 divided into pits by longitudinal striae, hind margin smooth and 

 polished; central part of metanotum bulging and coarsel}' punctate, 

 its apex rounded ; propodeum twice as long as metanotum in median 

 line, coarsely rugoso-punctate, with stout median keel, strong lateral 

 carinae and long whitish hairs on spiracular area; coxae of front and 

 middle legs dark, hairy on outer surface; hind coxae dark toward 

 base, the femoral groove mostly smooth and highly polished; hind 

 femora finely punctate above, becoming smooth and polished beneath, 

 about 1.5 times as long as broad, with five large teeth on ventral edge, 

 three of which are widely separated, the fourth crowded but broad 

 and distinct and followed by a shorter tridentate tooth ; the first two 

 free teeth are long, slender, and sharp pointed, the following two 

 blunter at apex (pi. 2, fig. 10). Fore wings fuliginous except a 

 narrow longitudinal streak through center which is nearly transpar- 

 ent ; hind wings paler ; veins brown. 



Abdomen about equal to thorax in length, widest near middle of 

 sixth segment, depressed toward apex, strongly compressed ventrally, 

 forming a wedge-shaped outline in cross-section; second segment 

 broadest behind; grooved along median line except at base, w^hich 

 is ridged with a cup-shaped depression on either side; following 

 three segments short, together about one-fourth length of second; 

 sixth large, about twice length of second, strongly depressed behind; 

 apex rounded; ovipositor a short erect spur reaching only to hind 

 margin of sixth tergite (pi. 3, fig. 14). 



