6S Mv. R. E. Turner 07i Fossorial FTymenoptera. 



related to thoracicwt, Sm. The male ouly is described, and 

 the locality given " Australia/' 



Key to the Australian Species of Miscothyris. 



?$' 



1. Second joint of ilagelliiui slender, more 



than twice as long as the third : abdo' 

 men black, banded with oraupe ; hind 

 tibiae sw^ollen and strongly serrate .... M, thoracicus, Sm. 

 Second joint of flagellum not slender, 

 never more than half as long again as 

 the third ; abdomen not marked with 

 orange ; hind tibiag not swollen 2. 



2. Hind tibifB serrate ; abdomen ferrnginous, 



with an obscure yellow spot on each 



side of the second segment 3/. sa)if/iii)io!e7itus, Turn. 



Hind tibiae spinose ; abdomen more or less 

 black 3. 



3. Pronotum and fourth dorsal segment 



entirely black, scutellum wholly j-ellow ; 

 second joint of flagellum almost equal 



to the third M. lucidulut, Turn. 



Pronotum and fourth dorsal segment witli 

 yellow bands, scutellum mostly black : 

 second joint of the flagellum nearly half 

 as long again as the third M. diibouUiyi, Turn. 



Miscothyris duboulayi, Turn. 



Gorytes duboulayi, Turn. Proc. Zool. Soc. Loudon, p. 496 (1908). J. 

 Clytemnestra duboulayi, Turn. Ann. & Mag. Nat. Hist. (8) x. p. 58 

 (1912). 



Hab. N.W. Australia [Du Bouluy). Probably from 

 Nicol Bay. 



A variety from Rutlierglen^ "Victoria, is distinguished by 

 tlie entii'e absence of the ferruginous colour on the abdomen 

 and by the black femora. The yellow markings on the 

 abdomen are the same as in the type, but the yellow band 

 on the fourth dorsal segment is continuous. This species 

 may be distinguished from lucidulus, Turn., by the longer 

 second joint of the flagellum, which is nearly half as long 

 again as the third, not nearly equal as in lucidulus, and by 

 the much smaller facets of the eyes in front. The dis- 

 tribution of the yellow markings is also very different. 



Key to the Australian Species of Arpactus. 



5$- 



1. Eyes not convergent towards the 



clypeus 2. 



Eyes strongly convergent towards the 

 clypeus , 4. 



