46 PEOCEEDINGS OF THE NATION AX. MUSEUM vol.78 



lateral carina moderately high, epomia absent, humeral margins 

 roundly prominent anteriorly; prescutum low, lateral lobes flat- 

 tened, notauli meeting far before scutellum ; seutellum convex, broad, 

 not compressed ; subalar tubercle obsolete ; mesopleural furrows f ove- 

 olate; metapleurum practically without sculpture; propodeum 

 polished, more or less longitudinally striate in apical middle, carina 

 straight, spiracles small, oval, pleural carina distinct, apophyses small, 

 slender, a little closer to carina than to apex; hind femur twice as 

 thick in middle as at apex, inner calcarium two-fifths as long as basi- 

 tarsus; areolet very small, nearly as broad as long with recurrent 

 not far behind middle, nervulus interstitial, postnervulus broken at 

 middle, nervellus curved, reclivous, unbroken, discoidella entirely 

 wanting. Abdomen polished; second tergite three times as long as 

 broad at base, shorter than first; sheath much shorter than hind 

 tibia. 



Head and thorax black and white, abdomen and legs ferruginous ; 

 white as follows : Face, clypeus, mandibles, palpi, broad entire or- 

 bital ring, scape below, frontal horn, annulus embracing flagellar 

 joints 6-10 and portions of 5 and 11; propleura, broad anterior 

 lateral and humeral margins of pronotum, the two confluent, meso- 

 pleurum except around margins, sternum (tinged with reddish) ; 

 round median spot on mesoscutum, scutellum and its carinae, post- 

 scutellum, both upper and lower divisions of metapleurum; and 

 propodeum (black basad of carina, along pleural carinae, and a 

 narrow median stripe as far back as apophyses) ; front coxae whitish; 

 wing hyaline, veins brown, stigma pale. 



Type-locality. — Alhajuela, Panama. 



Type.— C2ii. No. 42199, U.S.N.M. 



One specimen taken April 5, 1911, by August Busck. 



47. POLYCYRTUS (POLYCYRTUS) BULBOSUS, new species 

 Figure 6 



Very distinct in the form of the frontal horn and the structure 

 of the propodeum. 



Female. — ^Length 9 mm. 



Vertex in front view slightly convex; frons with shallow scrobes, 

 horn very large, bulbous, with a very deep pit at its base above (fig. 

 6) ; eyes weakly convergent below, comprising much less than two- 

 thirds total width of head ; face minutely punctate, weakly impressed 

 on each side of middle ; clypeus rather prominently elevated ; malar 

 space as long as basal width of mandible, in front view slightly con- 

 vex, mouth as broad as narrowest width of face; occiiDital carina 

 in side view convergent above with posterior margin of eye, fading 



