180 THE CANADIAN ENTOMOLOGIST. 



mandibles both four-toothed. Parapsidal furrows subobsolete on 

 the posterior half of the mesonotum, impressed anteriorly ; scutellum 

 large, moderately con\ex; propodeum not prolonged into a neck, 

 the median longitudinal carina and. lateral folds present, spiracles 

 prominent long-ovate. Wings hyaline, the marginal vein about 

 twice as long as the stigmal, the postmarginal and stigmal subequal, 

 marginal cilia present but short. Posterior tibiae with one spur. 

 Abdomen sessile, ovate or conic ovate. 



Tvpc of genus — Cadopisthoidea cladia, n. sp. 



Ke\ to the Species oy Ccelopisthoidea. 



1 . Postmarginal vein slightly shorter than the stigmal vein. 



Anterior wings slightly dusky diacrisice Crawf. 



Postmarginal vein not shorter than the stigmal; anterior 

 wings hyaline. 



2 . Propodeum with a deep circular fovea on either side of the short 



apical neck; lateral ocelli as far from the eye margin as from 

 each other; anterior wing apparently without marginal 



Qjlia nematicida Pack. 



Propodeum without deep fo\ea either side of the apex; 

 lateral ocelli as close to the eye margin as to the anterior 

 ocellus, much closer to the eye than to each other; anterior 

 wings with weak marginal cilia on the posterior margin 

 toward the apex cladicE, n. sp. 



Ccelopisthoidea clad ice, n. sp. 



Female. — Length about 2.5 mm. Head and thorax aeneous, 

 closely reticulate-punctate; scape reddish testaceous, the pedicel 

 and flagellum dark brown, pedicel longer than the two ring-joints 

 and first joint of funiclc combined, first ring-joint transverse, 

 second as long as broad; funicle joints not longer than broad, the 

 apical ones not as long as broad; club acuminate, three-jointed, 

 the joints about as long as the funicle joints. Ocelli in an obtuse 

 angled triangle, the lateral ocelli nearer the eye margin than to the 

 anterior ocellus. 



Punctures of the mesoscutum somewhat smaller and deeper 

 than those of the head, apical portion of the scutellum differently 

 sculptured from the anterior portion, giving the appearance of a 

 transverse line before the apex; true metanotum punctate; pro- 

 podeum punctate, the lateral folds distinct and complete, median 



