284 MR. R. E. TURNER ON THE [Feb. 15, 



TlIYNNOIDES PREISSII, Sp. 11. 



Thynnus pi-eissii Klug, MS. 



6 . Olypeus rounded at the apex, shallowly and rather sparsely 

 punctured, prominent at the base. Antennae as long as the 

 thorax and median segment combined, inserted much further from 

 each other than from the eyes, of almost equal thickness through- 

 out ; the interantennal prominence very broadly rounded at the 

 apex, divided by a short longitudinal carina. Head and thorax 

 closely and finely punctured, the front more coarsely, the scutellum 

 more sparsely ; the anterior margin of the pronotum almost 

 straight, very slightly emarginate, strongly raised, with a deep 

 groove behind it, the angles rather prominent ; scutellum broadly 

 truncate at the apex. Median segment very delicately punctured- 

 rugulose, obliquely depressed from the postscutellum, rounded at 

 the sides. Abdomen elongate, much longer than the head, thorax, 

 and median segment combined, the segments very slightly con- 

 stricted at the base ; the first segment with a sulcus from the base 

 nearly reaching the apex, very finely and closely punctured ; the 

 apical segment more coarsely punctured, subtruncate at the apex, 

 with a few indistinct transverse stria?. Sixth ventral segment 

 without spines. Hypopygium with a blunt spine on each side at 

 the base, thence produced in a very narrow triangular shape to the 

 base of the apical spine. First ventral segment not carinate. 

 Second abcissa of the radius quite as long as the third ; second 

 recurrent nervure received at one-third from the base of the third 

 cubital cell. 



Black ; the mandibles, except at the apex, and the clypeus 

 yellow ; a transverse mark near the apex of the clypeus brown. 

 Wings fusco-hyaline, nervures black. 



Length 18 mm. 



Hah. Western Australia (Preiss). 



Type in Berlin Museum. 



Easily distinguished by the rounded margin of the clypeus. 



Thynnoides rupithorax, sp. n. 



$ . Clypeus small, transverse, punctured, without a carina. 

 Head shining, sparsely punctured, more closely on the front than 

 on the vertex, rather longer than its greatest breadth, much 

 narrowed posteriorly, very slightly convex, with a short blunt spine 

 on each side near the middle of the lateral margin. Thorax 

 shining, obsoletely punctured ; the pronotum nearly as broad as 

 the broadest part of the head, twice as broad as long, the anterior 

 margin arched, with a row of setigerous punctures behind it, 

 slightly narrowed posteriorly. Pleurae shining and almost smooth. 

 Median segment closely punctured, very short, shorter than the 

 scutellum, obliquely truncate posteriorly, the surface of the trun- 

 cation finely aciculate. Abdomen much broader than the thorax, 

 the segments smooth at the base, finely punctured at the apex ; 

 the first segment truncate anteriorly, the dorsal surface divided 



