ABT. 14 ICHNEUMOISr-FLIES OF GENUS POLYCYRTTJS CUSHMAN 7 



48. Space between hypostomal carina and lower end of occipital carina broad 



and very deep ; dorsal margin of pronotum not prominent anteriorly ; 



abdomen entirely red 49. 



This space not very broad and deep, occipital carina nearly or quite reacliing 

 hypostomal carina ; dorsal anterior angle of pronotum very prominent ; 

 abdomen blacli and white 50. 



49. Head entii'ely black ; thorax entirely ferruginous. 



49. hicarinatus, new species. 

 Head black and white ; thorax stramineous, black and white. 



50. univittatus Cresson. 



50. Thorax partly reddish 51. 



Thorax black and white 53. tricolor Brullg, 



51. Second terbite black in basal middle and at extreme apex ; apophyses in 



female longer than basal width 51. paululus Cresson. 



Second tergite white at base and apex ; apophyses low. 



52. humerosus, new species. 



Subgenus Ckyptantjeidimoepha Viereck 



Crypianuridimorpha Vieeeck, Proc. U. S. Nat. Mus., vol. 46, 1913, p. 369. 



Genotype. — Cryptanuridimorpha elegans Viereck. 

 Cryptopterigimorplia Vieeeck, Proc. U. S. Nat. Mus., vol. 46, 1913, p. 371. 



Genotype. — Cryptopterigimorplia tubulifer Viereck. (New synonymy.) 



As indicated above, these two supposed genera are said by the 

 author to differ only in the position of the second recurrent vein 

 with relation to the second intercubitus, a character which shows 

 marked variation in the typical subgenus. 



The character by which Viereck distinguished them from Poly- 

 cry tus, the high hypostomal carinae which meet along the median 

 line, and which he professed to consider of tribal significance, shrinks 

 to at most subgeneric value when the whole Mesostenine complex of 

 genera is considered. In all other characters this group agrees with 

 the typical subgenus. 



1. POLYCYRTUS (CRYPTANURIDIMORPHA) ELEGANS (Viereck). (New combination) 



Cryptanuridimorpha elegans Vieeeck, Proc. U. S. Nat. Mus., vol. 46, 1913, 

 p. 369, male. 



Still known only from the unique type male. 



Distinct from any other species known to me by its entirely black 

 hind tibiae and basally black hind basitarsus, although in this re- 

 spect it does not differ from nigrotihialis Szepligeti. Characteristic 

 also are the large size, the conspicuous whitish hairs on the abdomen, 

 and the position of the antennal annulus (joints 11-15 of the fla- 

 gellum), this being usually several joints nearer the base. Tlie hypo- 

 stomal carinae are contiguous medially to a point nearl}^ opposite 

 the ventral articulation of the mandible. 



