BY ROWLAND E. TURNER. 173 



striated, sides nearly parallel. Fifth segment beneath longi- 

 tudinally striated. Black; legs testaceous-brown. Length 9 mm. 



Hab. —Australia (Macleay). Type in Oxford University 

 Museum. 



Very near T. fervens Sm., but the hypopygium is quite different. 



111. T. (LOPHOCHEILUS) TENUATUS Sm. 



Thynnus (Agriomyia) tenuatus Sm., Cat. Hym. B.M. vii. p.31, 

 n.80, 1859(<J). 



Allied to T. vigilans Sm. Hypopygium broad, gradually 

 narrowed, and truncate at apex, without any prominence at 

 basal angles and without an apical spine. Maxillary palpi very 

 slender: In some specimens the legs are fusco-ferruginous. 



#<*&.— Fremantle, W.A.(J. J. Walker). 



112. T. (Lophocheilus) vigilans Sm. 



Thynnus [Agriomyia) vigilans Sm., Cat. Hym. B.M. vii. p.28, 

 n.70, 1859(5). 



$- Clypeus broadly truncate anteriorly, strongly punctured, 

 pointed at base. Head rather small, rugulose, with thin fulvous 

 pubescence. Thorax delicately punctured, pronotum narrower 

 than head, the anterior margin raised, with a depressed, shining, 

 transverse line behind it. Median segment rounded, rather long 

 and slender, finely rugulose. Abdomen elongate, closely and 

 shallowly punctured, epipygium rugose. Hypopygium rather 

 short, bluntly produced near basal angles, thence triangular to 

 base of the slightly recurved apical spine. Second recurrent 

 nervure received by the third cubital cell on middle of lower 

 margin. Colour as in Smith's description, but varying 

 considerably. 



^. Head a little broader than long, very strongly rounded at 

 posterior angles, smooth and shining, sparsely punctured on front. 

 Pronotum a little broader than long, the sides parallel, finely 

 punctured. First abdominal segment coarsely punctured, the 

 apical margin slightly raised, with a groove before it, giving the 



