.',00 Mr. K. E. Turner on Fossorial Ilymenoptera. 



9. Pvpidinl area almost pointecl, densely 



clothed with silver pubescence T. dispersns, Tnrn. 



Pvpidial area very coarsely punctured, the 

 punctures confluent loniritudinally, 

 sparsely clothed with fusco-ferru^inous 

 setse T. sulcatus, Turn. 



1. Tachi/fes formosi'ssimiif!, Turn. 

 Tachytes fonnosissimus, Turn. Proc. Zool. Soc. London, p. 482 (1908). 



Ilab. Macka}', Q. {Turner). 

 I have only seen the type. 



2. Tachytes rubellus, Turn. 

 Tachytes rubellus, Turn. Proc. Zool. Soc. London, p. 482 (1908). cf. 



JIah. Port Darwin, N.T. {Turyier) ; Adelaide, S.A. (ex 

 coll. Perkins). 



? . The pygidiul area is fairly broad, rounded at the apex, 

 clotiied with golden pubescence. Basal joint of tlie fore 

 tarsus with five spines on the outer margin. Second abscissa 

 of the radius equal to the third; the two recurrent nervures 

 separated on the cubitus by a distance greater than that 

 between the first recurrent nervure and the first transverse 

 cubital nervure. 



The only female I have seen is from Adelaide ; tiie species 

 appears to be rare, though with a considerable range. 



.3. Tachytes approximatus, Turn. 

 Tachytes approximatus, Turn. Proc. Zool. Soc. London, p. 483 (1908). 



Hah. Mackay and Cairns, Q. {Turner). 



4. Tachytes plutocraticits, Turn. 

 Tachytes pltitocraticus, Turn. Proc. Zool. Soc. London, p. 348 (1910). $ . 



Nab. Townsville, Q. {Dodd). 



This is the largest Australian species of the genus. 



5. Tachytes reJitcens, sp. n. 



$ . Nigra ; tibiis, tarsis, femoribus apice, posticis fere totis, 

 tegulisque laete brunneo-testaccis ; segmentis dorsalibus fascia 

 lata, ventralibus angusta brunneo-ferruginea ; segmentis dor- 

 salibus, fa.scia lata apicali proecipue, aureo-sericeis ; capite 



