224 



Group IV. 



//. ruficollisj Macl. This species should be placed here. 

 I have recently examined the unique type (in the Aus- 

 tralian Museum, Sydney) which, unfortunately, is in very 

 bad condition, appearing to have been broken and subse- 

 quently reconstructed with gum. There are, however, some 

 unnamed specimens in the Macleay Museum, from Cairns, 

 which seem to be identical. Assuming their identity, the 

 species falls in Group IV. (Subgroup II.) of the present 

 Memoir, where it stands in the tabulation beside H. additus, 

 Blackb., differing from that species by, inter alia, its very 

 much smaller size, clypeus not projecting laterally beyond the 

 outline of the eyes, and lateral sulcus of the pronotum not 

 dilated in its front part. //. ruficollis is extremely variable 

 in colouring of elytra from the "black" of the type to testa- 

 ceous, with intermediate forms in which the elytra are black 

 with a wide discoidal red vitta, the vitta in some examples 

 being abbreviated so as to be a mere red blotch on the middle 

 of the base. 



H . grandis, Blackb. In the tabulation of the 2nd sub- 

 group of Group IV. (Trans. Roy. Soc, S.A., 1909, pp. 44, 

 etc.) this species might perhaps be more satisfactorily placed 

 by transposing the lines (on p. 44) D and E, EE, so that 

 E and EE would become D and DD, and would immediately 

 follow C, the line now standing as D becoming E, and follow- 

 ing next after the line now called EE. That change- would 

 involve the alteration of the lettering on p. 47 by DD be- 

 coming EE, and the next six lines becoming F, G, GG, H, 

 HH, FF. The change would be for the purpose of avoiding 

 the statement that the frons of H . grandis is not perpendicu- 

 larly declivious — a statement that cannot be made correctly 

 without qualification, inasmuch as the frons is perpendicular 

 for a certain distance on. either side part of its front margin 

 and rarely is slightly so even in the middle. I have recently 

 taken (in the original locality) a small Heteronyx (long., 4^- 1.) 

 which, I have no doubt, is a dwarf of H. grandis, and its 

 frons certainly proves that it is possible for the declivity to 

 be quite traceable all across the front. 



II. cornutus, sp. nov. Modice elongatus, postice sat dila- 

 tatus : sat nitidus ; ferrugineus ; supra pilis adpressis 

 minus brevibus minus crebre vestitus ; clypeo crebre nee 

 grosse ruguloso, antice ut lamina sat alta erecta angusta 

 reflexo, in exteriorem partem oculos fortiter superanti r 

 labro clypei planum nullo modo attingenti ; fronte sat 

 grosse rugulosa ; hac clypeoque ut plana disparia visis r 

 antennis 9-articulatis ; prothorace quam longiori ut 5 ad 



