BY W. MACLEAY, JUN., ESQ. 283 



Long. 8 lin., lat. 3^ liii. 



Hab. Wingelo, New South Wales. 

 This species is very hke A. denticoUis, but differs from it in 

 the following particulars. The body generally is more thickly 

 covered with minute brown scales. The crest is very distinctly 

 bidentated, with the posterior tooth longer and more acute than 

 the other. The rostrum, too, instead of having a triangular 

 impression in the middle, as in A. denticoUis, has two short 

 slightly coDverging elevations, while the lateral margins are 

 elevated at their apex into a sharp tubercle. In the thorax the 

 medial line is less distinctly marked, and the tubercles on each 

 side are minute and distant, while the lateral teeth are strong, 

 mostly connate, and slightly elevated. The elytra, also, are less 

 wrinkled, and the interstices between the rows of punctures are 

 flat. The male differs from tlie female in being narrower, and 

 in having the tubercles of the elytra a little larger. 



20. — ACANTHOLOPHDS APPROXIMATUS. 



Oblongus niger fusco-squamosus, fronte excavata crista 

 utrinque leviter bidentata, thorace bifariam tuberculato 

 lateribus dentate, elytris striatis interstitiis grauulatis 

 triseriatim tuberculatis tuberculo ultimo seriei primaa 

 magno ad suturam approximato lateribus rugosis apice 

 mucronatis. 



Long. 6^ lin., lat. 2| lin. 



Hab. Victoria. 



This species is of a dull fuscous black. The forehead is 

 much excavated. The crest is elevated, pointed backwards, and 

 slightly bidentate. The rostrum has two converging elevations 

 near the base, causing a deep fovea on each side in front 

 of the crest. The ai)ex has a triangular emargination and 

 a tubercle on the lateral margins. The thorax is ruoose, 

 and marked with deep transverse impressions, with a row of 

 five strong irregular tubercles on each side of the dorsal line, 

 the anterior one long and projecting slightly over the head, 

 and with two strong tubercles on the sides, one near the middle 

 with a small one attached to it in Iront, the other near the base. 



