Mr. R. E. Turner on Fossorial Bymenoptera. 557 



Length 8-9 mm. 



Hab. Eaglehawk Neck ; February. 



This is distinguished from discrepans by tlie sculpture of 

 the median segment, the more disiinct puncturation of the 

 head and thorax, and the shorter third abscissa of the radius. 



Tachytes tachyrrhostus, Sauss. 



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

 xiv. p. 18 (1854). S; Sauss. Reise Nov., Zool. ii. p. 73 (1867). d"; 

 Schulz, Zool. Ann. iv. p. 189 (1911). ^. 



This is a true Tachytes, as Schulz observes. I have a 

 specimen of tlie male from Victoria, but have not myself seen 

 'J'asmanian specimens. There is a female in the British 

 Museum from New South Wales. 



Lyroda michaelseni, Schulz, subsp. tasmanica, Turn. 



Lyroda jtnichaelseni, Schulz, Fauna Sudv?est Australiens, i. p. 479 



(1908). _ 

 Lyroda michaclseni, subsp. tasmanica, Turn. Proc. Linn. Soc. N.S.W. 



xxxviii. p. 621 (1914). 



Ilab. Eaglehawk Neck ; February, 



Subfamily Nitelin^. 



Nitela nigricans, Turn. 



Nitelaniyr leans, Turn. Trans. Ent. Soc. London, p. 428 (1910). 5. 



This is nearly related to N. avstraUensis, Schulz, from 

 S.W. Australia, but differs in the smaller and shallower 

 depressions round the base of the antennee, in the lesser 

 development of the carina on the front and clypeus, and in 

 the wholly black anterior tibiae. I doubt if these differences 

 are more than of subspecific value. 



Hah. Eaglehawk Neck ; March. 



Taken on a fallen Eucalyptus log. 



Subfamily Trtpoxtlinjs. 

 Genus Pison, Jur. 



Key to the Tasmanian Species. 



1. Legs red 2. 



Legs black 3. 



2. Three cubital cells ; posterior ocelli nearer to 



each other than to the anterior P. rujipes, Schuck. 



Two cubital cells ; ocelli in an equilateral tri- 

 angle P. simulans, Turn. 



