53S Mr. R. E. Turner on Fossorial Ilymcnoptera. 



Family Thynnidae. 

 Subfamily Diamminjb, 



Diamma hlcolor, Westw. 



Diamma bicolor, "Westw. Proc. Zool. Soc. Loudon, iii. p. 53 (1835). $. 

 Psdmmatha chalybea, Shuck. Trans. Eut. Soc. London, ii. 1, p. 69 



(1S37). d. 

 Tachypterus fasciatus, Gu(5r. Voy. Coq., Zool. ii. 2, p. 217 (1839). S • 



Not uncommon in Northern Tasmania, but I did not take 

 specimens in the south. Also common in the south-eastern 

 portions of Australia from Adelaide to Sydney. 



Subfamily Bhaqiqasteeinje^ Aslim. 



Rhagigcmter pugionatus, Sauss. 



Ithaf/if/aster pugionatus, Sauss. Reise Nov. Zool. ii., Hym. p. 113 

 (1807) ; Turn. Proc. Linn. Soc. X.S.W. xxxii. p. 234 (1907). $ . 



Common on Leptospermum blossom at Eaglehawk Neck in 

 February. 1 liave had a specimen of this species from 

 Cumberland, N.S.W., but it is certainly not common on the 

 mainland. I do not know tiiat any other species of the 

 genus occurs in Tasmania, though forms of R. xii}icolor, Guer., 

 are so plentiful on the mainland. Westwood, however, 

 mentions a specimen of R. unicolor sent to him as coming 

 from Tasmania. I therefore include it as Tasmanian, though 

 with doubt. 



Rhagigaster unicolor, Guer. 



Rhagigaster unicohr, Guer. Voy. Coq., Zool. ii. 2, p. 214 (1839). c?. 

 Rhayigastei' bifiotattis, Westw. Arc. Ent. ii. p. 105 (1844). 5 . 



If any form of this occurs in Tasmania, it would probably 

 be the Victorian subspecies Igelli, Turn. 



Genus Eirone, Westw. 



Keg to the Tasmanian Species. 



66. 



1. Clypeus without an apical depre.«sion or 



triangular truncation ; legs black .... 2. 

 Clypeus with an apical depression or ti'i- 

 angular truncation ; legs ferruginous 

 or bright testaceous brown 3. 



2. Pronotum entirely black E. dispar, Westw. 



