1910.] F0SS0RIAL WASPS OF AUSTRALIA. 311 



PsEUDAGENIA UNA, sp. n. 



2 . Olypeus transverse at the apex, more than three times as 

 broad as long ; eyes not quite touching the base of the mandibles, 

 their inner margins nearly parallel ; posterior ocelli nearly half as far 

 again from the eyes as from each other. Antennas rather slender, 

 longer than the head, thorax and median segment combined ; the 

 second joint of the flagellum only a little longer than the third. 

 Closely microscopically punctured and slightly shining. Head 

 nearly twice as broad as the thorax. Pronotum broad, nearly as 

 long as the mesonotum, slightly rounded at the anterior angles ; 

 median segment slender, convex, at least twice as long as broad. 

 Abdomen small, subpetiolate, shorter than the thorax and median 

 segment combined. Second cubital cell almost triangular, nearly 

 pointed on the radial nervure, third abscissa of the radius less 

 than half as long again as the first, the third cubital cell short, 

 very little longer than the second on the cubitus. Radial cell 

 rather short, rounded at the apex ; recurrent nervures received 

 close to the middle of the second and third cubital cells ; cubitus 

 of the hind wing originating far beyond the transverse median 

 nervure. Legs smooth. 



Black, glossed with dark steely blue. Wings hyaline, crossed 

 by a fuscous band at the basal nervure and by a very broad pale 

 fuscous band almost reaching the apex from the base of the radial 

 cell. Mandibles fusco- ferruginous. 



Length 4 mm. 



Hob. Mackay, Q. [Turner). March. 



The neuration of this species is most like Agenia, but I cannot 

 see the tuft of long hairs at the base of the maxilla? characteristic 

 of that genus, so place it provisionally in Pseudagenia. 



PSEUDAGENIA GILBERTI, Sp. II. 



2 . Clypeus broadly rounded anteriorly, much broader than 

 long, slightly convex. Eyes almost touching the base of the 

 mandibles, a little nearer together on the vertex than on the 

 clypeus ; the posterior ocelli further from the eyes than from each 

 other. Second joint of the flagellum nearly half as long again as 

 the third. Pronotum rather short, broadly rounded anteriorly ; 

 median segment obliquely sloped, a little longer than broad. 

 Abdomen petiolate, the petiole occupying about one-third of the 

 length of the first segment. Legs long and slender, the tarsal 

 ungues with one tooth. Third abscissa of the radius more than 

 half as long again as the second, first recurrent nervure received 

 beyond the middle of the second cubital cell, second before one 

 third from the base of the third cubital cell ; submedian cell longer 

 than the median ; cubitus of the hind wing originating just beyond 

 the transverse median nervure, almost interstitial. Second ventral 

 segment with a well-marked transverse groove near the base. 



Black ; the anterior half of the clypeus, the margins of the eyes 

 very narrowly not reaching the summit, a spot on the propleurse, 

 pronotum stained with black on the middle and sides, tegulse, a 



