Mr. R. E. Turner on Fossorial Hymenoptera. 541 



middle, the apical portion below the carina strongly depressed 

 and snbconcave, truncate at the apex. Antennje long, as 

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

 apic d joints arcuate beneath ; interantennal prominence 

 bilobed. Head not mucli produced or narrowed behind the 

 eyes ; the posterior ocelli as far from the eyes as from the 

 posterior margin of the head. Finely and closely punctured, 

 most finely on the median segment ; abdomen elongate- 

 fusiform, sparsely punctured. Hypopygium small, rounded 

 at the apex, and ciliated. Third abscissa of the radius 

 shorter than the second by about one-fifth, second recurrent 

 nervure received just before the middle of the third cubital 

 cell. 



Hah. Waratah, N.W. Tasmania [Lea). 



Described from four males. 



This is nearest to Fl. rufopicta, Sm., but in that species 

 the clypeus is longitudinally carinate before the apical 

 depression. The clypeus also distinguishes it from caroU, 

 Turn., and other allied species. 



Subfamily Tbynnin^. 

 Ariphron hicolor, Erichs. 



Ariphron hicolor^ Erichs. Arch, f, Naturgesch. viii. p. 204, t. v. fi"'. 1 



(1842). ?. 

 Aripliron riqidulus, Turn. Proc. Linn. Soc. N.S.W. xxxii. p. 274 



(1007). c?'. 



Hah. Eaglehawk Neck ; February. Also from Victoria. 



The female seems scarce, and 1 did not take it. From 

 the localities in which I took the males I suspect that the 

 females may associate witii ants of the genus Myrmecia, 



Tachynomyia ahdominaVis^ Gudr. 



Agriomyia {Tachynomyia) ahdominalis, Guer. Mag. de Zool. xii. p. 5 



(1842). c?.. 

 Var. Arpiomyia {Tachynomyia) spinolce, Guer. Mag. de Zool. xii. p. 6 



(1842). S. 

 Thynnus fervidus, Erichs. Arch. f. Naturges. viii. p. 263 (1842). (S • 

 Tachynomt/ia ahdo^ninaUs, Turn. Proc. Linn. Soc. N.S.W. xxxii. p. 279 



(1907). J$. 



Hah. Mt. Wellington, 2200 ft.; January. Also from 

 Victoria. 



As far as T am aware, no other species of Tachynomyia 

 occurs in Tasmania, though several are found in Victoria. 

 The female is distinguislied by the sculpture of the second 

 dorsal segment, wiiich is without the transverse rugpe usual 

 in the senus. 



