BY ROWLAND E. TURNER. 243 



prominent, a deep transverse groove behind margin; pronotum 

 almost smooth, mesonotum sparsely punctured. Scutellum rather 

 strongly punctured, with a transverse depressed line at its base, 

 subtriangular rather narrowly truncate at apex, depressed at 

 apex and slightly concave, overlapping postscutellum and reach- 

 ing base of the median segment, which is abruptly truncate, 

 transversely striated and clothed with white pubescence. Abdo- 

 men fusiform, shallowly and finely punctured, first segment 

 beneath with a strong median carina produced at apex into a 

 long tubercle, overhanging the groove between first and second 

 segments. Apical segment above coarsely punctured. Hypo- 

 pygium with a prominent, acute spine on each side near base, 

 thence narrow and elongate to base of the strong, slightly recurved 

 apical spine. Black; anterior margin of clypeus and margin of 

 interantennal prominence yellow; centre of clypeus and apex of 

 mandibles ferruginous. Abdominal segments with a band of 

 short white pubescence on the apical margins. Wings fusco- 

 hyaline. Length 26 mm. 



Hab. — South Australia (Smith, Blackburn). 



Smith's description is even more feeble than usual. 



203. T. melanotus, n.sp. 



(J. Clypeus rather narrowly produced and subtruncate at 

 apex, coarsely punctured, with a carina from base not quite 

 reaching apex. Head shining, sparsely and very finely punctured; 

 interantennal prominence strongly developed, rounded and 

 ■deeply emarginate anteriorly, with a delicate longitudinal carina. 

 Antennae as long as abdomen. Thorax shining, sparsely and 

 rather finely punctured; anterior margin of pronotum raised, the 

 angles not prominent; scutellum broadly truncate at apex. 

 Median segment rounded, very finely and closely punctured, with 

 thin grey pubescence. Abdomen shallowly and rather finely 

 punctured ; segments 2-4 of about even breadth, with an 

 impressed transverse line near base. Epipygium rugose, truncate 

 at apex. Hypopygium prominent near basal angles, thence 

 narrowed and produced in an elongate- triangular form to base of 



