4:8 MR. It. E. TURNER ON 



at the base and thinly clothed with long white hairs, delicately 

 transversely aciculate on the depressed apical portion. Second 

 dorsal segment with three strong transverse carinse at the base, 

 the apical half transversely striated ; third and fourth dorsal 

 segments closely pnnctnred and clothed with long pubescence at 

 the base, smooth at the apex ; fifth dorsal segment closely punc- 

 tured. Fifth ventral segment coarsely longitudinally striated. 

 Pygidium strongly compressed at the base, the surface of the 

 apical truncation narrowly elongate ovate, a dense tuft of pale 

 fulvous hairs springing from each side near the base. 



Ilab. Cunderdin, W. Australia (Mrs. Lundy). December and 

 January. $ $ in cop. 



This is very near E. tuberculifrons Sm., but may be distinguished 

 in the male by the large size, the fuscous wings, the acute angles 

 on the sides of the prothorax, and the broader hypopygium ; in 

 the female by the much sparser puncturation of the head and 

 thorax, and the straight instead of arched division between the 

 punctured and smooth areas on the third dorsal segment. 



Thynnoides fuscocostalis Turn. 



Thynnoides fuscocostalis Turn. Ann. & Mag. Nat. Hist. (8) x. 

 p. 540 (1912),' tf $ . 



Further specimens of this species show that the female often 

 has the legs ferruginous. 



Belothynnus novellus, sp. n. 



$ . Niger ; mandibulis basi, clypeo margine apicali, maculaque 

 utrinque, lineaque obliqua utrinque inter antennas flavis ; femori- 

 bus, tibiis tarsisque ferrugineis ; alis subhyalinis, venis fuscis ; 

 segmento ventrali primo apice tuberculato. 



$ . Ferruginea ; abdomine nigro ; segmento dorsali primo 

 transverse sex-carinato ; pygidio contracto, longitudinaliter 

 striato, basi utrinque fasciculate 



Long., 6 18 mm. ; $14 mm. 



c? . Clypeus obliquely depressed from near the base, broadly 

 truncate at the apex ; the interantennal prominence broadly 

 rounded at the apex ; antenna? slightly narrowed at the apex, a 

 little longer than the thorax and median segment combined. 

 Head, thorax, and median segment very finely and closely punc- 

 tured ; anterior margin of the pronotum very shallowly and 

 widely emarginate. Abdomen elongate, the sides nearly parallel, 

 more sparsely punctured than the thorax, the segments slightly 

 constricted at the base ; seventh dorsal segment rugose at the 

 apex ; first ventral segment with a strong longitudinal carina, 

 produced into a tubercle at the apex ; hypopygium with a blunt 

 tooth on each side at the base, thence produced in an elongate 

 triangular form to the base of the apical spine. Third abscissa 

 of the radius a little longer than the second, first recurrent 

 neiwure received nearer to the second transverse cubital nervure 



