360 STUDIES IN AUSTRALIAN ENTOMOLOGY, XV., 



There is a row of closely placed deep punctures near the lateral 

 border of the elytra, but these are not the normal setigerous 

 punctures of the ninth interstice; the latter are very small, but 

 may be noticed by a careful inspection about the middle of the 

 lateral depression. 



The facies of this strange insect, for which I have not only 



founded a new genus, but have also felt compelled to propose a 



new tribe, is almost that of a true Carabus, and is very unlike 



that of any other Australian carab. Most of its characters 



show an affinity to the Trigonotomini, but it seems also to have 



some remote affinities towards the Broscini, Chlceniini and 



Panageini. It is evidently an ancient and generalised form 



such as might have been expected to be still in existence in 



Australia. 



Tribe TRIGONOTOMINI. 



Castelnau, Etudes Entomologiques, 1834, p.75. 



Under the law of priority, which acts in the same manner for 



higher groups as it does for genera and species, the tribal name 



Trigonotomini must be given preference over Pterostichini 



(Erichson, 1837) and Platysmatini (Tschitscherine, 1899). 



Genus Castelnaudia. 



Castelnaudia sp., Tschitscherine. 



Trichosternus opacij^ennis Tschitscherine, Hor. Soc. Ent. Ross. 

 XXXV., 1902, p. 528 (not Homalosoma opacipenne Macleay). 



There can be no doubt but that the late M. Tschitscherine mis- 

 took another species for Homolosoma opacipenne Macl.; it would 

 have been impossible for a specialist holding the views he did on 

 taxonomy to have placed that species in the genus Trichosternus. 

 One has only to take note of his statement in regard to the 

 species he had before him, " tete et pronotum luisants," to be 

 convinced that it was not H. opacipenne Macl., which has only 

 the head nitid, the pronotum being opaque. 



Tschitscherine's species is sufficiently described to be identified. 

 It is unknown to me in nature; and " a specific name which un- 

 doubtedly rests upon an error of identification can not be retained 

 for the misdetermined species even if the species in question are 



