ART. 14 ICHNEUMON-FLIES OF GENUS POLYCYRTUS CUSHMAN 45 



margin entire; prescutum moderately high, lateral lobes slightly 

 flattened ; scutellum low, convex, broad, not at all compressed ; meso- 

 pleurum with subalar tubercle noncarinate, prepectal carina incom- 

 plete above, the suture not foveolate, sternauli weak anteriorly, 

 wanting posteriorly; metapleurum obscurely i)unctate in middle^ 

 very strongly convex; propodeum strongly convex, carina straight, 

 spiracle oblong, apophyses low tuberculiform, much closer to apex 

 than to carina; hind femur twice as thick in middle as at apex, 

 inner calcarium barely a third as long as basitarsus ; areolet of nor- 

 mal form and size, recurrent weakly antefurcal, nervulus strongly 

 antefurcal, postnervulus broken distinctly below middle, nervellus 

 at lower third. Abdomen polished; first segment short, stout, 

 strongly decurved, spiracles at apical two-fifths; second tergite 

 hardly three times as long as broad at base. 



Head black with the following white: face, clypeus, mandibles, 

 broad orbital line complete except for narrow interruption in malar 

 space, maxillary palpi and annulus beginning on sixth flagellar 

 joint; maxillary palpi fuscous; thorax black with mesopleurum 

 largely, sternum, metapleurum, and propodeum ferruginous and 

 with the following white markings: lateral margin of propleura, 

 narrow anterior lateral and broad humeral margins of pronotum, 

 two long discal lines on mesoscutum, scutellum and its carinae en- 

 tirely and the lateral areas partly, postscutellum, subalar tubercle, 

 a large spot in upper posterior portion of mesopleurum and a 

 smaller one on anterior margin and the apophyses; legs ferrugi- 

 nous, tibiae and tarsi yellow; wings hyaline, faintly yellowish, 

 venation black ; abdomen ferruginous. 



46. POLYCYRTUS (POLYCYRTUS) INFRACTUS. new species 



Unique among the species known to me in its unbroken nervellus, 

 in the single median white spot on mesoscutum, and in the form 

 of the occipital carina. 



Female. — ^Length 7 mm. 



Temples from above oblique, convex, a little less than a third as 

 long as short margin of eye, frons with scrobes obsolete, horn short 

 stout conical; eyes weakly convergent below, comprising disinctly 

 less than two-thirds total width of head; face narrowly impressed 

 each side of middle; clypeus rather weakly prominent; malar space 

 as long as basal width of mandible, slightly constricted, mouth 

 hardly as broad as narrowest width of face; occipital carina in 

 side view strongly, convergent above with posterior margin of eye, 

 very high and thin below, joining the almost equally high hypos- 

 tomal carina, the two carinae and the somewhat hollowed cheek 

 forming a deep cavity. Thorax polished; pronotum with anterior 



