AKT. 14 ICHNEUMON-FLIES OF GENUS POLYCYBTUS — CUSHMAN 59 



96. Propodeum stramineous, more or less stained with brownish above, longi- 



tudinally impressed medially, apophyses cariniform. 



carinispinis Cushman, female (Honduras). 

 Propodeimi yellow with black markings 97 



97. Second tergite black throughout above 98 



Second tergite white medially near base 101 



98. Posterior orbital white mark interrupted above 99 



Posterior orbital white mark not interrupted above 100 



99. Propodeum with a transverse black band behind basal carina ; frontal horn 



and mandibles black ferox Cresson, female (Mexico). 



Propodeum without such a black mark ; frontal horn apically and mandibles 

 white junceus Cresson, male (Mexico). 



100. Frontal horn black; posterior tarsi white; apophyses flattened. 



acerbus Cresson, female (Mexico). 

 Frontal horn white; posterior tarsi red; apophyses slender conical. 



lituratus Brull§, female, male (Cuba). 



101. Propodeum with a transverse black mark on basal carina 102 



Propodeum without such a black mark 106 



102. Mandibles largely or entirely black 103 



Mandibles yellow 105 



103. Pleura largely reddish yellow 104 



Pleura largely black; petiole black above. 



fiilvofemoratus Cameron, female (Guatemala). 



104. Subbasal white spot of second tergite transversely quadrilateral. 



duplicatus Oushman, female (Panama). 

 Subbasal white spot of second tergite triangular. 



triangularis Cushman, female (Panama). 



105. Scutellum discally black, yellow at apex. 



major Cresson, female, male (Mexico). 

 Scutellum entirely yellow mancus Cresson, female, male (Mexico). 



106. Propodeum longitudinally furrowed ; black mark of second tergite acute at 



base canaliculatus Cameron, male (Guatemala) 



Propodeum not furrowed ; black mark of second tergite truncate at base. 



semialbus (Cresson), female, male (Cuba), 

 montezuma Cameron, male (Mexico). 



107. Hind tibia entirely black melanoleucus Brull4, male (Mexico). 



Hind tibia not entirely black 108 



108. Hind tibia black above, pale below 109. 



Hind tibia black at base or at both base and apex 110. 



109. A stouter species with metapleura coarsely punctate; wings infumate api' 



cally collinus Cameron, female (Guatemala). 



A more slender species with metapleura barely punctate; wings not in- 

 fumate apically confirmatus Cameron, female (Guatemala). 



110. Hind tibia black at base and apex. 



obtusispina Cameron, female (Guatemala). 

 Hind tibia black at base only 111. 



111. Propodeum with strong apophyses. 



blanditus Cameron, female (Guatemala). 

 Propodeum transversely striate, without apophyses. 



reliquus Cresson, female (Mexico). 

 ( = ?Glodianus). 



