BY ROWLAND E. TURNER. 113 



at base. Head punctured on vertex, rugose on front, inter- 

 antennal carina short and broadly V-shaped. Thorax and median 

 segment closely punctured, scutellum rather narrowly truncate 

 at apex; median segment depressed and shining at apex. Abdo- 

 men subpetiolate, fusiform, shining and sparsely punctured; 

 second segment depressed at base; segments 2-5 with a slightly 

 raised, curved mark before the depressed apical margin; sides of 

 the segments with long scattered hairs. Hypopygium very 

 short, subtruncate at apex, with a tuft of long curved hairs on 

 each side. 



Hab.—Swa.n River, W.A. (Smith). 



I have seen only the type. 



Subgenus Aeolothynnus Aslim. 



Aeolothynnus Ashm., Canad. Ent. xxxv. 1903. 



(J. Second recurrent nervure received by the third cubital cell 

 very near base; labrum usually short and truncate anteriorly, 

 in a few species long and slightly emarginate at apex; palpi 

 usually rather stout, first joint of the maxillary palpi short, 

 maxillae more or less bearded on outer margin. Hypopygium 

 very variable, never with more than three spines. Antennas of 

 even th.'ckness throughout, usually short. 



£. Tarsal ungues simple (except in Aeol. samice). Second 

 abdominal segment never with more than five transverse carina?; 

 fifth ventral segment punctured; pygidium contracted, usually 

 with parallel sides. 



Type, Thynnus (Agriomyio) cerceroides Sm. 



Ashmead gives Aeol. multiguttatus Ashm., as the type of his 

 genus, but, as he has not given any description of that species, his 

 name cannot stand. I have therefore selected a species which 

 answers to the generic characters given by him as the type. 



28. T. (Aeolothynnus) westwoodi Guer. 

 Agriomyia westivoodi Guer., Mag. de Zool. xii. p.4, 1842((J). 

 Thynnus intricatus Sm.,C8Lt.Hjm. B.M.vii. p.30,n.75,1859( ( £). 

 Thynnus longiceps Sm., Cat. Hym. B.M.vii. p.46,n. 132, 1859($). 

 Thynnus nanus Sm., Descr. n.sp. Hym. p.171, n.35, 1879( ( J). 

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