AKT. 14 ICHN^EUMOISr-FLIES OF GENUS POLYCYRTUS CUSHMAN 19 



beyond and low before junction; temples from above strongly con- 

 cave, little more than a fourth as long as short diameter of eye; 

 diameter of an ocellus hardly two-thirds as long as ocell-ocular line ; 

 basal joint of flagellum about seven times as long as thick. Thorax 

 polished, virtually impunctate; anterior lateral margin of prono- 

 tum prominent and with a moderately high carina, epomia complete 

 and very strong; prescutum rather prominent, lateral lobes some- 

 what flattened and longitudinally subsulcate; prepectal furrow not 

 f oveolate ; subalar tubercle carinate ; metapleurum with a few minute 

 punctures; propodeum weakly longitudinally impressed medially, 

 with a low elevation on each side of middle basally, carina arching 

 sightly forward in middle, spiracle elongate oval, apophyses short, 

 stout, compressed, nearer to carina than to apex ; hind femur hardly 

 twice as thick in middle as at apex, inner calcarium hardly three- 

 fifths as long as basitarsus; areolet rather small, broad and short, 

 recurrent strongly antefurcal, nervulus antefurcal, postnervulus 

 broken slightly above middle, nervellus at lower third. Abdomen 

 polished; second tergite about three times as long as broad at base, 

 nearly as long as first; sheath about three-fourths as long as hind 

 tibia. 



Head and abdomen black and white, thorax ferruginous; face 

 except medially, clypeus, mandibles, malar space and lower cheeks, 

 frontal and superior orbits, maxillary palpi, annulus embracing 

 flagellar joints 5-12 and apex of 4, apical margins of all tergites, and 

 lateral margins of all but first two, and hind tarsus white; petiole 

 ferruginous; hind femur piceous, tibia yellow, legs otherwise ferru- 

 ginous; wings hyaline, veins black, stigma brown. 



Type-locality. — Rio Trinidad, Panama, 



Type.— C^t. No. 42185, U.S.N.M. 



One specimen taken March 23, 1912, by August Busck. 



17. POLYCYRTUS (POLYCYRTUS) PARVICLAVUS, new species 



Female. — Length 12 mm. 



Vertex in front view weakly concave; frons with poorly defined 

 scrobes, horn very short, conical; eyes strongly convergent below, 

 comprising distinctly less than two-thirds total width of head at 

 level of antennae; face polished, rather deeply impressed each side 

 of middle; malar space distinctly shorter than basal width of man- 

 dible, constricted, mouth barely as broad as narrowest width of face ; 

 occipital carina parallel with posterior margin of eye, recurving at 

 lower end to join hypostomal carina and with a very small notch 

 just before junction, hypostomal carina rather low; temples from 

 above oblique, flat, nearly half as long as short diameter of eye; 

 diameter of an ocellus less than two-thirds ocell-ocular line and only 

 a little longer than postocellar line; basal joint of flagellum about 



