236 REVISION OF THE THYNNID^E OF AUSTRALIA, II , 



emarginate posteriorly, broader than long, sides nearly 

 parallel. Median segment short, obliquely truncate posteriorly, 

 closely and minutely punctured. First abdominal segment 

 concave-truncate anteriorly, closely and deeply punctured 

 above the truncation, apical margin strongly raised with a deep 

 transverse groove before it. Second segment with about nine 

 rather irregular transverse carina?, including the recurved apical 

 margin; the three following segments delicately aciculate at base, 

 very sparsely punctured at apex, apical margin very slightly 

 depressed, with a faintly raised curved mark on each side. Fifth 

 ventral segment coarsely longitudinally striated. Pygidium 

 compressed at base, obliquely truncate and widened posteriorly, 

 longitudinally striated before and at base of the truncation, 

 smooth at apex; epipygium with a rounded lobe on each side 

 near base of the truncation. Entirely light ferruginous. In 

 more mature specimens black, with the mandibles, antennae and 

 legs fusco-ferruginous. Length 11mm. 



Hab. — Australia(Damel); Sydney (Froggatt; <JQ in cop.). 



Types in Oxford University Museum. 



192. T. walkeri, n.sp. 



(J. Clypeus large, prominent at base, broadly truncate at apex, 

 longitudinally punctured-striate. Antennas as long as head and 

 thorax. Head a little broader than pronotum, finely rugulose; 

 thorax very finely punctured-rugulose, punctured on disc of 

 mesonotum and on scutellum; scutellum with an almost obsolete 

 longitudinal carina. Median segment transversely rugulose, 

 obliquely depressed from just behind postscutellum. Abdomen 

 closely and shallowly punctured, short, second segment a little 

 the broadest; first segment oblique, narrowed to base, with a 

 carina from base to apex beneath and a deep groove between 

 first and second segments, second ventral segment subtubercu'ate 

 at base. Segments 2-4 above with a depressed transverse line near 

 base. Sixth ventral segment with a spine on each side at apical 

 angles. Dorsal plate of epipygium a little produced, punctured 

 at base, longitudinally striated at extreme apex. Hvpop} T gium 



