Mr. E-. E. Turner on Fossoriul Ilymenoptera. 305 



tibiarum tarsorumque spinis albidis ; tegiilis fuscis macula albida ; 



alls hyalinis, venis fuscis. 

 <S . Ferain-de similis. 

 Long., § 10 mm., S 8 mm. 



? . Clypeus shining, the apical margin transverse and de- 

 flexed ; the base of the clypeus and the front clothed with short 

 silvery pubescence. iSecond joint of the flagellum equal to the 

 third, twice as long as the tirst; eyes separated on the vertex by 

 a distance almost equal to the combined length of tlie two 

 basal joints of the flagelluni ; vertex behind the posterior ocelli 

 somewhat concave, and divided by an obscure longitudinal 

 sulcus. Thorax very minutely and closely punctured, sub- 

 opaque; median segment nearly twice as long as the scutellum, 

 broad, opaque, microscopically punctured, the dorsal surface 

 without a sulcus except at the extreme apex. Abdominal 

 segments subopaque, microscopically punctured ; dorsal seg- 

 ments 1-4 with a narrow apical band of silver pubescence, 

 the margins of the segments under the pubescence fuscous. 

 Pyoidial area broad, subtriangular, rounded at the apex, the 

 basal line a little shorter than the sides, tlie surface covered 

 with very coarse elongate jtunctures, from which spring very 

 short fusco-ferruginous seta;. Basal joint of fore tarsus with 

 five spines on the outer njargiu. Second abscissa of the 

 radius longer than the third ; first recurrent uervure nearer 

 to the second recurrent than to the first transverse cubital 

 nervure. 



The male is very similar to the female, but the antennal 

 joints are shorter, so that the distance between the eyes on 

 the vertex is nearly as great as the combined length of the 

 second and third joints of the flagellum ; the seventh dorsal 

 segment is covered with silver pubescence. 



Hab. Busselton, W.A. (TM/-«e/-), cJ ?, January ; Cottesloe, 

 W.A. {Giles), S ? , December. 



The female is easily distinguished from other Australian 

 species by the coarse sculpture and very sparse setse of the 

 pygidial area. 



11. Tachytes tachyrrhostas, Sauss. 



Tachytes tachyrrhostus, Sauss. Mem. soc. phys. & hist. nat. Geneve, 

 xiv. p. 18 (1854). cJ; Sauss. Reise d. ' Novara,' Zool. ii., Hymen. 

 p. 73 (1867). d; Scliulz, Zool. Ann. iv. p. 189 (1911). c?. 



I have been quite unable to identify this species, of which 

 the male only is described ; it is, however, certainly a 

 Tachytes, and may prove to be the male of T. fatalis, but 



