244 REVISION OF THE THYNNID^E OF AUSTRALIA, II., 



apical spine. First ventral segment with a strong longitudinal 

 carina, subtuberculate at apex; second segment with a blunt 

 tubercle at base. Anterior coxae moderately concave. Entirely 

 black. Wings l^aline, nervures fuscous. Length 18 mm. 

 Nab. — Swan River. Type in Oxford University Museum. 



204. T. binghami, n.sp. 



(J. Clypeus short, a little produced and broadly truncate at 

 apex, finely punctured. Antennae about as long as thorax and 

 median segment combined. A very delicate carina from below 

 anterior ocellus to apex of interantennal prominence. Head 

 and thorax finely rugulose, scutellum and disc of mesonotum 

 punctured. Median segment transversely rugulose, obliquely 

 truncate from postscutellum. Abdomen closely and very 

 minutely punctured, fusiform; first segment obliquely truncate 

 anteriorly, with a longitudinal sulcus on the truncation; 

 beneath with a carina from base to apex, subtuberculate and 

 with a broadly triangular, vertical truncation at apex. Segments 

 2-4 above depressed at base, with a slightly raised mark on each 

 side close to apical margin. Epipygium \vith one or two oblique 

 striae at apex. Hypopygium with a strong spine on each side 

 near base, thence sharply narrowed and produced to base of the 

 short apical spine. Black; mandibles, except at apex and clypeus 

 yellow; legs ferruginous. Pubescence grey, thickest on sides of 

 head and on median segment. A faint steely lustre on thorax. 

 Wings hyaline, tinged with yellow, nervures fuscous. Length 

 20 mm. 



Hob. — Australia. 



205. T. waterhousei, n.sp. 



(J. Clypeus convex, broadly emarginate at apex, closely 

 punctured. Head very finely punctured, a delicate curved 

 carina below anterior ocellus joined by a longitudinal carina 

 which reaches apex of the rounded prominence between antennae. 

 Thorax finely and closely punctured, more strongly on disc of 

 mesonotum an 1 scutellum ; pronotum broadly emarginate 





