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DESCRIPTIONS OF NEW SPECIES OF AUSTRALIAN 

 COLEOPTERA. Part X. 



By Arthur M. Lea. 



(Plate Ixxvi.) 



Family LUCANID^. 

 HoMOLAMPRiMA CRENULATA Macl. (Plate Ixxvi., fig. 1 ). 

 A specimen of this very rare stag-beetle is in Mr. Carter's 

 Collection from Dorrigo. 



Rhyssonotus grandis, n.sp. (Plate Ixxvi., figs.2, 3, and 4). 



cT . Black with a bronzy gloss ; parts of under surface and of 

 legs obscurely diluted with red. 



Head very wide ; surface very uneven, with an obtuse 

 median ridge culminating in a double tubercle, an obtuse 

 tubercle near each side in front ; with coarse irregular punc- 

 tures. Eyes rather small, the upper one on each side separat- 

 ed from the lower one by a wide canthus. Mandibles mode- 

 rately long, multidentate, and with coarse punctures. Men- 

 turn arched and projecting downwards, with dense punctures, 

 lower lip rounded at base, convex and almost vertical in front, 

 with dense punctures. Scape about as long as rest of anten- 

 nae combined, funicle three-jointed ; club six-jointed, basal 

 joint with a short stout projection, the four following ones of 

 about even length and each with a somewhat longer projection 

 than on the basal one. Frothorax large, about twice the width 

 of head, apex emarginate in middle, on each side of which is 

 a slight projection, sides crenulated, each side with a strong 

 basal incurvature, surface shallowly impressed in places, with 

 a rather strong median groove ; with small punctures scattered 

 about, but becoming coarse on sides. Scutellmn small, strong- 

 ly transverse ; with a few punctures. Elytra narrower than 

 prothorax and about once and one-third as long, sides rather 



