194 Cameron, HymenopUra Orientalia. 



small, triangular, transverse at the base ; strongly punc- 

 tured. Scutellum not much raised, its sides not carinate ; 

 its base depressed ; the postscutellum bifoveate at the base. 

 Median segment more or less areolated ; its spiracles 

 large, linear. Legs stout, as in Pimpla ; the calcaria 

 short ; the claws long, curved, simple. Wings without an 

 areolet ; the transverse cubital nervure interstitial with 

 the recurrent ; the transverse basal nervure also inter- 

 stitial ; the first recurrent nervure is received in the basal 

 third of the cellule, much nearer the base than in Pimpla. 

 Abdomen stout ; the petiole not so stout as in Pimpla 

 and of variable form ; the spiracles are placed shortly 

 before the middle ; the segments smooth and shining, 

 neither punctured nor striated, and without depressions ; 

 the hypopygium large, cultriform ; ovipositor elongate. 

 The genus as here defined falls into two groups. 



a. Middle lobe of the mesonotum distinctly raised above 



the lateral ones ; ihe median segment distinctly 

 transversely striated or reticulated. 



1, Body black. 



Legs entirely black ; the antenna not annulated 

 with white. M. nigricans. 



Legs for the greater part fulvous and yellow; 

 the antennge annulated with white. 



M. varipes. 



2. Body and legs rufuous ; the hinder legs black. 



M. ferrugineus. 



b. Middle lobe of the mesonotum not distinctly raised 



above the lateral ones, the median segment not dis- 

 tinctly reticulated or striated. M. luteus. 



Macrogaster nigricans, Sp. nov. 



Niger; orbitis oculorum antice alb is ; alls hyalinis, 

 apice fumatis. $. 



Long. 13 ; terebra 12 mm. 



