ART. 14 ICHNEUMON-FLIES OF GENUS POLYCYRTUS CUSHMAN 27 



cons toward apex, hind coxa and trochanter testaceous, femur black- 

 ish, tibia yellow, tarsus white; wings faintly yellowish hyaline, 

 venation dark, stigma pale in middle, tegulae piceous, whitish at 

 base; abdomen black above, white laterally and ventrally, petiole 

 pale reddish above, tergites 2-6 with a median apical white spot 

 and more or less distinct narrow reddish to whitish margins. 



Type-locality. — Serra dos Orgaos, State of Rio Janeiro, Brazil. 



Type. — In Paris Museum. 



One specimen taken in 1902 at an altitude of 500-1,000 meters by 

 E. R. Wagner. 



25. POLYCYRTUS (POLYCYRTUS) XANTHOTHOKAX Brulle 



Mesostenus (Polycyrtus) xantho-thorax BruliJ;, Hist. Nat. Inst. Hym., 

 vol. 4, 1846, p. 213, male. — Szepligeti, Ann. Mus. Nat. Hung., vol. 14, 

 1916, p. 274 (part). 



The evaluation of certain characters of color and also of structure 

 in this genus is very difficult with the limited amount of material 

 that I have had for study, but I doubt very much if all the speci- 

 mens placed under this species by Szepligeti belong here. Certainly 

 he can not be considered consistent in his treatment of color char- 

 acters when he used the color of the clypeus for separating species 

 in his key and then admits a form with white face as a variety of 

 a black-faced species. 



The two specimens that I place here differ from Brulle's descrip- 

 tion apparently only in the color of the hind trochanters, which in 

 the type are said to be black. Of the two specimens before me 

 one has the trochanters testaceous and the other has them piceous. 

 These specimens are both males from Brazil and both collected by 

 E. R. Wagner, one in Minas Geraes (the type-locality) and the other 

 in the Serra dos Orgaos. 



As thus identified this species is very closely related to medialhus 

 Cushman, differing, aside from sexual characters, only in having 

 above the frontal horn two rather deep pits separated by a small 

 tubercle and in lacking a median frontal groove; the space between 

 the lower end of the occipital carina and the hypostomal carina 

 is broader; the epomia are slightly developed; the scutellum is more 

 elevated; the propodeal spiracles are distinctly oval; the apophyses 

 are long, slender, and curved ; the scutellum is stained with piceous ; 

 the tegulae are largely stramineous; and the tergites lack the apical 

 white spots though having the margins reddish. In the male the 

 antennal annulus begins on the eighth flagellar joint. 



The female is unknown to me unless it is to be found in the next 

 preceding or the next following species. 



