ART. 14 ICHNEUMOJSr-FLIES OF GENUS POLYCYRTUS OUSHMAN 39 



sulcate; scutellum not high; prepectal suture foveolate only at its 

 upper end, mesopleural suture strongly foveolate, subalar tubercle 

 not carinate ; propodeum more than a half longer than broad, weakly 

 impressed in basal middle, the impression continued behind the ca- 

 rina as a narrow, shallow groove, carina narrowly subangulate in 

 middle, spiracles oval, apophyses rather long and slender, much 

 nearer to carina than to apex; hind femur little more than a half 

 thicker in middle than at apex, inner calcarium two-fifths as long 

 as basitarsus, areolet rather broad, recurrent and nervulus antefur- 

 cal, postnervulus broken above middle, nervellus above lower third. 

 Abdomen minutely alutaceous beyond second tergite, stout, second 

 tergite hardly two and a half times as long as broad at base and 

 distinctly shorter than first ; sheath as long as hind tibia. 



Black and yellow with the following parts yellow : Face, clypeus 

 except apical margin, broad orbital ring, spot at base of mandible, 

 palpi, annulus on flagellar joints 4-11; propleura, anterior-lateral 

 and humeral margins of pronotum, two short discal lines on mesos- 

 cutum, scutellum and its carinae, postscutellum, mesopleurum except 

 just below wings, sternum, metapleurum; propodeum except basal 

 suture and median and lateral longitudinal lines, the former widened 

 on carina, the latter extending backward from spiracles ; broad lateral 

 and apical margin of tergites and a transversely quadrilateral sub- 

 basal spot on second tergite; legs stramineous with dorsal sides of 

 femora ferruginous, the hind femur with a yellow median dorsal 

 line, hind tibia yellowish, tarsus whitish ; wings hyaline, veins brown, 

 stigma pale. 



Type-locality. — Rio Trinidad, Panama. 



Tijpe.—C2it. No. 42197, U.S.N.M. 



One specimen taken March 20, 1912, by August Busck. 



38. POLYCYRTUS (POLYCYRTUS) TRIANGULARIS, new species 



Closely related to duplicatus Cushman, from the above description 

 of which it differs as follows : 



FetThole. — Length 12 mm. 



Malar space not constricted, mouth fully as broad as narrowest 

 width of face ; temples in side view broader, occipital carina nearly 

 parallel with posterior margin of eye, of same form but a little more 

 prominent below and separated from hypostomal carina by a deep 

 groove ; temples from above weakly concave and fully a third as long 

 as short diameter of eye. Propodeum less than, a half longer than 

 broad, apophyses stout ; inner hind calcarium barely a third as long 

 as basitarsus. 



Mandibles entirely black ; median black stripe of propodeum broad, 

 the transverse mark on carina confluent with lateral stripes ; subbasal 



