138 ^Ir. R. E. Turner on some new or 



Hah. Cape York, Q. [Turner) j April. 



Type in B.M. 



Very near T. flavopicla, Ritsema, the type of -which came 

 from Aru, but this is a more stoutly built insect and the wings 

 are much darker, the head also is larger and more massive. 



Thynnus trisulcatus, Sm. 



This female, of which the male is unknown, is certainly 

 distinct from T. depressus, Westw., under which name I 

 placed it with doubt in my recent revision of the family. 



Thynnus {Zelehoria) monticolus, sp. n. 



(J . Clypeus produced and rather narrowly truncate at the 

 apex, very finely and closely punctured, not carinated. 

 Antennae inserted nearer to each other than to the eye?, as 

 long as the head, thorax, and median segment combined, the 

 apical joints rather feebly arcuate. Front very finely rugu- 

 lose, with a delicate longitudinal sulcus reaching the anterior 

 ocellus. Head transverse, finely and closely punctured. 

 Thorax finely punctured, the mesonotum with two longi- 

 tudinal impressed lines on each side. Median segment 

 longer than broad, delicately aciculate, with sparse cinereous 

 pubescence on the sides. Abdomen subpetiolate, fusiform, 

 longer than the head, thorax, and median segment combined, 

 smooth and shining, with sparse and fine punctures. Hypo- 

 pygium longer than broad, sliglitly narrowed to the apex, the 

 apical margin truncate with a very short apical spine. 



Black ; the mandibles at the base, the anterior margin of 

 the pronotum very narrowly and interrupted in the middle, 

 and the middle of the postscutellum very pale yellow. 

 Wings hyaline, nervures black. The second recurrent 

 iiervure is received at one-quarter from the base of the third 

 cubital cell. 



Length 14 mm., exp. 27 ram. 

 Hah. The Australian Alps, Victoria. 



Nearest to T. (^Zelehoria) nitidulus, Turn., from which it 

 differs in the frontal sulcus and in the colour, especially of 

 the legs, which are black instead of ferruginous as in the 

 allied species. 



Thynnus [Zelehoria) Icevi/rons, Sm. 



Thynnus {Agriomyia) Itevifrons, Turn. Proc. Linn. Soc. N.S. W. xixiii. 

 p. 166 (1908). 



I placed this female in the subgenus Agriomyia in my 

 revision of the family, but it is almost certainly a Zelehoria, 

 probably the opposite sex of Z. sexmaculatus^ Sm. 



