AET. 14 ICHNEUMON-FLIES OF GENUS POLYCYRTUS CUSHMAN 51 



notiim tumid along anterior lateral margin but carina obsolete, hu- 

 meral margin tuberculately prominent anteriorly; prescutum low, 

 lateral lobes not impressed, marginal groove not interrupted by a 

 tubercle ; subalar tubercle not carinate ; lower division of metapleurum 

 shallowly, rather densely punctate, upper division virtually smooth ; 

 propodeum polished except behind, where it is obscurely roughened, 

 apical carina obtusely angled medially with only a short carina ex- 

 tending forward from the angle, apophyses higher than broad at 

 base; hind femur only about one-half thicker in middle than at 

 apex; areolet short and broad, recurrent near apex, nervulus inter- 

 stitial, postnervulus broken at about the middle, nervellus not far 

 below middle. Second tergite hardly three times as long as broad 

 at base. 



Head black and white ; face, broad complete orbital ring, clypeus, 

 mouth parts, and annulus beginning on fifth joint of flagellum 

 white; thorax tricolored; propleura white, pronotum black with 

 broad anterior-lateral and humeral margins white; mesoscutum 

 black with two discal lines white ; scutellum and postscutellum white, 

 their lateral areas black ; mesopleurum and sternum and metapleurum 

 pale testaceous, subalar tubercle white nearly surrounded by black; 

 propodeum yellowish testaceous with basal area and a median and 

 two lateral longitudinal stripes black; legs testaceous with upper 

 surfaces of coxae yellowish, the hind coxa with a narrow piceous 

 line; wings hyaline, veins brown, stigma pale; abdomen black and 

 white; first segment black above and below, white at sides and apex; 

 second tergite broadly black at base, narrowly black at apex with a 

 broad band of white between, lateral margins white, broadening 

 basally; third tergite colored like second but basal black much 

 shorter (rest of abdomen missing in specimen), 



52. POLYCYRTUS (POLYCYRTUS) HUMEROSUS, new species 



Very similar structurally to paululus as described above, differing 

 as follows : 



Female. — Frons with scrobes, pits, and tubercles more distinct; 

 face distinctly punctate; malar space distinctly shorter than basal 

 width of mandible ; occipital carina very nearly reaching hypostomal 

 carina, obsolete at lower end, temples in dorsal view weakly convex. 

 Propodeum (fig. 4) polished before apical carina, behind the carina 

 medially longitudinally rugose, transversely so at sides, apical carina 

 acutely angled medially with single carina from angle to basal 

 carina, apophyses shorter than broad at base. 



In color it differs from paululus only as follows: Basal area of 

 propodeum black only along suture, the median stripe broadened on 



