BY ROWLAND E. TURNER. 117 



depressed at base; segments 2-5 with a rather strongly raised 

 curved mark on each side before the depressed apical margin. 

 Hypopygium narrow, truncate at apex, with a small spine, 

 the sides nearly parallel. 



M.-N.W. Coast of Australia (B.M.). 



33. T. (Aeolothynnus) tenuis, n.sp. 



(J. Clypeus narrowly produced and truncate at apex. Head 

 very finely rugose, opaque; interantennal prominence small, 

 emarginate at apex. Thorax finely punctured, median segment 

 very delicately punctured. Abdomen elongate, shining, first 

 segment with a deep sulcus from base not reaching apex; segments 

 1-5 with a raised curved mark on each side before the narrowly 

 depressed apical margin. Hypopygium short, with a fairly 

 strong apical spine, angles at base of spine slightly produced. 

 Black; mandibles and a line on postscutellum whitish; margins 

 of pronotum obscure testaceous; second and third abdominal 

 segments ferruginous; femora fusco-ferruginous; tibiae and tarsi 

 testaceous. Wings hyaline, iridescent, nervures fusco-ferruginous. 

 Length 6 mm. 



H.ab — Mackay, Q. (Turner). 



Nearest to T. minatus Sm. 



34. T. (Aeolothynnus) pygmaeus, n.sp. 



$. Clypeus subtriangular, rather short and very narrowly 

 truncate at apex, with a carina from base not reaching apex. 

 Head closely and rather strongly punctured, the interantennal 

 carina V-shaped. Thorax and median segment shining and more 

 finely punctured; pronotum short; scutellum large and broad. 

 Abdomen subpetiolate, very flat, shining and very delicately 

 punctured. Hypopygium small, without an apical spine. 

 Antennae very short. Black; mandibles, clypeus except at base, 

 margins of eyes narrowly interrupted at summit and on outer 

 margin, interantennal carina, margins of pronotum, tegulae, a 

 large curved mark on mesopleurae beneath anterior wings and a 

 spot above base of intermediate coxae, a spot on scutellum, post- 



