350 THE CANADIAN ENTOMOLOGIST. 



species, the new species herein described, and the synoptic table given by 

 Ashmead (1904, pp. 318-322). 



Normal position. * 



Male, female : Normal for the subfamily and tribe. Head wider 

 than thorax (dorsal aspect) with the vertex not acute medially, the occipital 

 foraminal depression immargined, rounded ; the eyes moderately large, 

 ovate in the lateral aspect, convex, hairless, or practically so ; the ocelli 

 in a curved line on the vertex ; apex of the clypeus emarginate or 

 truncate at the meson ; mandibles not strong, both 4-dentate, the outer or 

 lateral tooth forcipiform, but variable in size ; the antennae inserted 

 slightly below (ventrad) of the middle of the face (direct cephalic aspect), 

 but above (dorsad of) an imaginary line drawn between the ventral ends 

 of the eyes, the face produced below, the club in the female variable, not 

 large, frequently smaller than the first funicle joint, the latter large, longer 

 than the pedicel ; in the male, joints 1-4 of the funicle all longer than 

 wide ; flagelUim filiform or moderately clavate ; scape reaching to the 

 cephalic ocellus, or nearly, 



Pronotum distinct, transverse, sometimes narrowed mesially and 

 dilated literad; mesothorax large, the parapsidal furrows incomplete, 

 present cephalad and extending for not much more than half their length ; 

 axillce widely separated ; metathorax variable in length and declivous or 

 not, with a small neck, .tricarinate, punctate. Abdomen conic-ovate, 

 convex ventrad, the ovipositor not exserted. Wings hyaline, or sometimes 

 in the female with a large fumated spot in the disk, with the postmarginal 

 vein equal to, or very slightly longer than, the stigmal vein. 



Body metallic dark greenish, with brassy tinges, or shining blackish, 

 sculptured, usually punctate. The males differ from the females in the 

 following details : The flagellum of the antennae is larger and filiform, the 

 body slenderer, the abdomen somewhat shorter, about the length of the 

 thorax and ovate and depressed, and the eyes slightly more rounded ; the 

 funicle joints are relatively larger and more hispid, the scape longer, the 

 pedicel and second ring-joint shorter. The abdomen more often with a 

 pallid spot at base, dorsad, or with some yellowish there. 



Readily separated from Fteromalus Swederus by means of the short 

 postmarginal vein and small metathoracic neck ; from Dibrachys Foerster 

 by the insertion of the antennse near the middle of the face, that is, not 

 much below (ventrad) the point midway between the cephalic margin of 

 the vertex and the apical margin of the clypeus, the face being produced 



