ART. 14 ICHNEUMON-FLIES OF GENUS POLYCYRTUS — CUSHMAN 33 



tergite two and a half times as long as broad at base and distinctly 

 shorter than first, sheath as long as hind tibia. 



Head black with the following white: Face, clypeus, orbits ex- 

 cept narrow interruption in malar space (the posterior orbits nar- 

 rowly so), maxillary palpi and bases of labial palpi, and annulus 

 embracing flagellar joints 5-11 and most of 4; thorax black ante- 

 riorly and dorsally, ferruginous laterally and ventrally as is also 

 the propodeum; ventral extremities of propleura pale ferruginous 

 and white with apex stramineous; margins and small spot on lower 

 anterior margin of pronotum, two discal lines on mesoscutum 

 apices of scutellum and postscutellum, and scutellar carinae white; 

 upper portion of mesopleurum black with subalar tubercle white; 

 upper division of metapleurum partly whitish; propodeum with a 

 longitudinal dash of black crossing the carina, apophyses whitish 

 apically ; legs ferruginous, hind tibia yellowish, tarsi whitish ; wings 

 hyaline, venation brown, stigma pale in middle, tegulae white; 

 abdomen black and white with petiole red and apical margin of first 

 tergite and apical and lateral margins of others white. 



Type-locality. — Rurrenabaque, Rio Beni, Bolivia. 



Type.— C^^t. No. 42196, U.S.N.M. 



One specimen received from the Mulford Biological Exploration 

 and taken in November, 1921, by W. M. Mann, 



33. POLYCYRTUS (POLYCYRTUS) CONFUSUS. new species 



Polycyrtus copiostcs Ceesson, Proc. Acad. Nat. Sci. Phila., 1873, p. 146 

 (part). 



In describing copiosus Cresson confused at least three species, 

 of which the present species is one. Paratype 771.8, Acad. Nat. 

 Sci. Phila., and cotype No. 13247, U. S. Nat. Mus., constitute the 

 type series of confusus. These two specimens are before me, the 

 former by loan from the Academy of Natural Sciences of Phila- 

 delphia through the kindness of Mr, E. T. Cresson, jr. The abdo- 

 mens of both specimens have been damaged by dermestids, but most 

 of the dorsal surface remains. 



This species differs in many respects from copiosus, but most 

 strikingly in the abrupt, prominent termination of the occipital 

 carina some distance away from the hypostomal carina, in the short 

 straight apophyses, and in the short malar space. 



Female. — Length about 10 mm. 



Vertex in front view straight; frons with poorly defined scrobes 

 but with a median elevation defined by deep, narrow furrows con- 

 verging toward the horn, the latter stout conical; eyes weakly con- 

 vergent below, comprising much less than two-thirds total width 

 of head; face polished impunctate, longitudinally impressed each 



23760—31 ^3 



