AUSTRALIAN CERAPACHYINI. 265 



Owing to the profound differences between the Austrahan ant 

 fauna and that of India it is improbable that this from is merely a 

 variety of L. longitarsis Mayr of the latter country. Forel, in his 

 brief description calls attention to the following peculiarities of aus- 

 traJis, but the study of more material will in all probability reveal 

 others: Length 3.4 mm. It is smaller than longitarsis and has some- 

 what smaller and more convex eyes. The petiole is transversely 

 rectangular, whereas in longitarsis its anterior corners are more pro- 

 jecting and its anterior border is distinctly concave. The sculpture 

 of australis is more regularly punctate and the postpetiole is blackish 

 brown, with two large, reddish spots. 



