AET. 14 ICHNEUMON-FLIES OF GENUS POLYOYRTUS — CUSHMAN 49 



vergent below, comprising nearly two-thirds total width of head; 

 face distinctly, sparsely punctate, rather deeply longitudinally im- 

 pressed on each side of middle; clypeus in profile not prominent; 

 malar space hardly as long as basal width of mandible, constricted, 

 mouth as broad as narrowest width of face ; occipital carina in side 

 view weakly convergent above with posterior margin of eye, very 

 prominent below and separated by a deep groove from hypostomal 

 carina; temples in dorsal view concave, a little more than a third 

 as long as short diameter of eye. Pronotum polished, the posterior 

 groove crenulate, the crenulations in middle extending forward into 

 scrobe as striations, anterior lateral carina prominent, epomia short, 

 humeral margin not prominent anteriorly ; prescutum rather high, 

 lateral lobes weakly impressed, the groove around the margin inter- 

 rupted opposite tegula by a low tubercle ; scutellum rather high and 

 weakly compressed; mesopleurum finely sparsely punctate below 

 and anteriorly, prepectal carina complete, obsoletely f oveolate ; sub- 

 alar tubercle reduced to a carina; lower division of metapleurum 

 obliquely rugose, upper division sparsely punctate ; propodeum with 

 scattered punctures, basal carina straight medially, apical carina 

 forming an acute angle medially from which a single carina extends 

 forward to basal carina, apophyses reduced to high angles in the 

 carina, midway between basal carina and apex; pleural carina dis- 

 tinct ; hind femur hardly twice as thick in middle as at apex, inner 

 calcarium fully two-fifths as long as basitarsus; areolet small, elon- 

 gate, recurrent and nervulus antefurcal, postnervulus broken at mid- 

 dle, nervellus at lower fourth. Abdomen polished, second tergite 

 nearly four times as long as broad at base, but distinctly shorter 

 than first ; sheath a little longer than hind tibia. 



Ferruginous with head black, palpi and legs ferruginous, hind 

 tarsi yellow, wings hyaline, veins brown, stigma pale. 



Type-locality. — Panama, Panama. 



Type.— C2,t. No. 42202, U.S.N.M. 



One specimen without antennae taken April 5, 1923, by K. C. 

 Shannon. 



50. POLYCTRTUS (POLYCYRTUS) UNIVITTATUS Cresson 



Mesostenus {Polycyrtus) univittatus Cbesson, Proc. Acad. Nat. Sci. Phila- 

 delphia, 1873, p. 148, female, male. 



A cotype of each sex from Mexico in the United States National 

 Museum are the basis of the following description. 



Female. — Differs structurally from above description of hicari- 

 natus as follows: Frontal horn small without either distinct pits 

 or tubercle above at base; eyes comprising much less than two- 

 thirds total width of head; malar space as long as basal width of 



23760—31 i 



