286 REVISION OF THE THYNNID.^ OF AUSTRALIA, I., 



with shallow punctures, the segments smooth at extreme base 

 and apex. The scutellum is broadly truncate at the apex. 

 Hab.—A\ha.ny, W.A. 



T. MOERENs Westw. 



Aelurus moerens "Westw., Arc. Eut. ii. 2, 124, 1844((J). 



Aelurus incanus Sm., Cat. Hym. B.M. vii. p.53, n.4, 1859((J). 



Aelurus vulpinus Sm., Cat. Hym. B.M. vii. p.54, n.7, 1859((J). 



Thynnus schoberi D.T., Cat. Hym. viii. 115, 1897. 



(^. The clypeus has the anterior region narrowly pale yellow; 

 the colour of the legs varies from fuscous to ferruginous. 



9. Head, thorax, median segment and two basal abdominal 

 segments coarsely rugose, the head slightly convex, much broader 

 than long, with a deep depression on each side between the eye 

 and the base of the antenna. Prothorax broader than long; 

 median segment short, obliquely truncate posteriorly, the surface 

 of the truncation finely rugulose. The tarsal ungues bitid. The 

 apical margin of the first abdominal segment raised, forming a 

 transverse carina, and a well marked transverse carina near the 

 base of the second segment. The remaining segments punctured, 

 most sparsely on the sides, almost smooth at the base. Epipygium 

 finely rugulose, narrowly rounded at the apex. Fuscous, antennae 

 and legs ferruginous. Length 13 mm. 



Hab. — Shoalhaven, Bombala, N.S.W.; Melbourne, Vic. 



The female described by Smith (Cat. Hym. B.M. vii. 69) is that 

 of 7\ dentatus Sm. 



T. ADUSTA Sm. 



Thynnus aduatus Sm., Cat. Hym. B.M. vii.p.43,n.l22, 1859(9). 



9. Head and thorax coarsely puuctured, the punctures con- 

 fluent; the head convex, much broader than long, very strongly 

 rounded at the posterior angles. Median segment longer than 

 usual in the genus, broadened posteriorly and obliquely truncate. 

 The two basal abdominal segments rugose, the apical margin of 

 the basal segment forming a strongly raised carina with a 

 depressed transverse line in front of it. Second segment with a 

 transverse carina close to the base, nearly covered by the first 



