17 



so than in G. Bostocki ) ; the disc of the pronotum is strongly 

 strigate and therefore opaque ; the elytral interstices are quita 

 flat and are more finely punctured, the punctures not running in 

 two regular series on each interstice but on the greater part of 

 most of the interstices in three rows ; the basal part of the front 

 femora is obtusely and widely angular beneath (in longipenne 

 there is a small sharp tooth). I do not know G. Froggatti, Macl., 

 or atriijii, Mac!., but it is evident from the descriptions that this 

 present insect is very distinct from them, — the former having 

 the " whole prothorax coarsely punctured " and its elytral inter- 

 stices being called " ridges ; " while the latter is described as 

 having inter oMa its " head without punctures " and the apical 

 joint of its maxillary palpi triangular. 

 N.W. Australia. 



DIABATICUS. 



B. aiistraUs, Er. Some time ago I took an example of 

 Diabaticus on the Dividing Range, Victoria, which appears to 

 me to be a variety of the Tasmanian D. australis. It differs 

 from the type in the front one-third part of its elytra being of 

 the same ferruginous colour as the prothorax. The interstices of 

 its elytra being more absolutely flat than those of aitstralis suggest 

 the possibility of specific distinctness, which however could only 

 be decided by examination of numerous specimens. I do not 

 think the insect has hitherto been recorded as occurring on the 

 mainland of Australia. 



D. (?) iumidiceps, Blackb. and minor, Blackb. In Tr. R.S., 

 S.A., 1889, p. 133, I very doubtfully attributed these species to 

 Diabaticus provisionally. In Pr. L.S., K.S.W., 1898, p. 494, Mr. 

 Sloane says that they cannot in his opinion stand in Diabaticus 

 but require a new generic name. I take this opportunity of 

 saying that I agree with him. As he is, I believe, at present 

 working on the Lebiides I leave to him the task of dealing more 

 satisfactorily with their generic position. 



SILPHOMORPHA. 



S. dijjicilis, sp. nov. Lata ; sat nitida ; supra fere tota piceo- 

 nigra, corpore subtus antennis palpis pedibusque rufis ; fere 

 Isevis, punctura magna in utroque elytro prope scutellum 

 impressa ; capite prothoraceque fere aequalibus ; elytris 

 obsolete interrupte substriatis, interstitiis vix omnino planis, 

 apice subsinuata anguste rufescenti, lateribus leviter 

 deplanatis. Long., 4^ L; lat., 2| 1. 



This species is notable among its immediate allies by the large 

 puncture on each elytron placed very near to, and about on a 

 level with the hind apex of, the scutellum. The elytra are dis- 



B 



