1908.] AUSTRALIAN FOSSORIAL WASPS. 493 



a little shorter. Mandibles notched on the outer margin. Eyes 

 separated on the vertex by a distance equal to the length of the 

 second joint of the flagellum. Front slightly convex, subo^Daque, 

 finely and shallowly punctured ; the front below the base of the 

 antennae, the inner margin of the eyes as high as the ocelli and 

 the outer margin clothed with short silvery pubescence. Posterior 

 ocelli elongate-ovate, situated on a slight convexity, with a shallow 

 depression on the vertex behind them. Thorax smooth and 

 shining, mesopleurae subopaque ; niesosternum shining, with a feAv 

 scattered punctures ; the pronotum depressed below the meso- 

 notum, very gradually sloped. Median segment distinctly longer 

 than the mesonotum, opaque and shagreened, wdth a very shallow 

 longitudinal depression near the apex, vertically truncate pos- 

 teriorly ; the face of the truncation transversely striated, with a 

 deep median sulcus. Abdomen shining and almost smooth, the 

 apical margin of the segments depressed, with a band of short 

 silver pubescence broadly interrupted in the middle ; the first 

 segment rounded towards the base ; the pygidial area very 

 sparsely punctured, very slightly convex in the middle, elongate, 

 blunt at the apex. Intermediate coxae very widely separated ; 

 the comb of the anterior tarsi very strongly developed. The fii'st 

 recurrent nervure is received rather nearer to the base of the 

 second cubital cell than to the second recui-rent nervure, which is 

 received close to the middle of the cell ; the third cubital cell 

 is produced, i^eaching on the cubital nerviire much more than 

 halfway from the apex of the second cell to the margin of the 

 wing. 



Entirely black. Wings hyaline, tinted with fuscous, nervures 

 black. 



Length 14 mm., exp. 22 mm. 



Hah. S. Australia ; W. Australia. 



Type in British Museum. 



The median segment, although broader than long, is longer 

 than is usual in the genus. 



ZOYPHIUM ERYTHROSOMA, Sp. n. 



5 . Mandibles very deeply notched on the outer margin. 

 Clypeus broad, slightly convex in the middle, the anterior margin 

 depressed trans verselj^, with two minute teeth on each side, 

 almost smooth, with thin and very fine silvery pubescence on the 

 sides. Antennae inserted about half as far again from each other 

 as from the eyes, scarcely longer than the head, gradually 

 thickened to the apex, the length of the scape no greater than 

 the distance between the antennfe ; the first joint of the flagellum 

 globose, a little shorter than the second, the third half as long 

 again as the second, the fourth a little longer than the third, the 

 apical joint very large and massive, as long as the first and 

 second combined. The inner margin of the eyes almost straight, 

 .the distance between the eyes on the vertex slightly exceediug 

 two-thirds of the length of the flagellum. The posterior ocelli 

 rather more than half as far again from each other as from the 



