208 REVISION OF THE THTNNIDJE OF AUSTRALIA, II., 



rounded at apex; median segment obliquely truncate from post- 

 scutellum. Abdomen rather closely punctured; first segment 

 obliquely truncate anteriorly; second segment a little broader 

 than first or third. Sixth ventral segment with a spine on each 

 side at apical angles. Hypopygium with a broad spine on each 

 side near base, thence sharply narrowed and produced, emarginate 

 at apex, with a short spine at each of the angles and a strong 

 central spine. Black; mandibles, clypeus, interantennal promi- 

 nence, except a black median line not reaching apex, margins of 

 eyes very narrowly interrupted at summit, an interrupted 

 transverse line on vertex, margins of pronotum, tegulse, a large 

 quadrate spot on posterior margin of mesonotum, mesopleurse, 

 except a large black spot beneath posterior wing, apical half of 

 scutellum, postscutellum, median segment except a broad black 

 line on each side, a transverse band on the six basal abdominal 

 segments above, interrupted in middle except on first segment, 

 apex of first ventral segment, the whole of the three following 

 segments and apex of fifth yellow; legs ferruginous; anterior 

 coxse yellow. Wings hyaline, nervures black, stigma ferruginous. 

 Length 11 mm. 



//«&.— Cape York, Q. (Elgner). Type in Coll. Froggatt. 



This species resembles Agriomyia maculata Guer., in colour, but 

 not in any structural details. 



156. T. sabulosus, n.sp. 



9. Head strongly rounded at sides, broadly emarginate pos- 

 teriorly, vertex slightly convex and smooth, front strongly 

 punctured, with long hairs and a strong, short, median 

 carina; a rather shallow, smooth depression between base of 

 antenna and eye, the eyes oval, reaching nearly to base of 

 mandibles, the position of the posterior ocelli indicated by a large 

 puncture on each side on vertex. Pronotum finely and very 

 shallowly punctured, a row of deep punctures each with a hair 

 springing from it along anterior margin, which is almost straight, 

 hind margin broadly emarginate. Mesonotum punctured ; 

 median segment smooth, short and obliquely truncate posteriorly. 



