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AUSTRALIAN COLEOPTERA: NOTES AND NEW SPECIES. 



By H. J. Carter, B.A., F.E.S. 



This paper originated in the examination of material lately acquired for 

 the Queensland Museum by Mr. Henry Hacker, the very efficient entomologist 

 of that Institution. It also includes notes and descriptions of Mr. H. W. 

 Brown's captures in the Northern Territory, descriptions of two new Lucanidae 

 from that prolific district, the Barrington or Mount Royal Range, together with 

 notes on synonymy gleaned from my correspondence with Mr. K. G. Blair of 

 the British Museum. 



LUCANIDAE. 



Rhtssonotus politus, n. sp. (Text-figs. 1, 2.). 



Oval, bronze (with a reddish tinge), very nitid, glabrous above, a short 

 fringe of yellow hairs on anterior coxae, also at apex of abdomen and pros- 

 ternum, legs and tarsi reddish. 



d". Head 2J x 6 mm. — excluding mandibles — rugose-punctate, forehead with 

 medial saddle-shaped ridge, bituberculate in front, sides of head widely lobate, 

 the lobe rounded in front, angulate behind; mandibles projecting about 3 mm., 

 each armed with 5 or 6 tuberculiform teeth on inside and a single conical tubercle 

 near external edge towards the base ; upper surface of mandibles coarsely rugose, 

 underside lightly punctate; mentum arched and projecting; eyes completely 

 divided, antennae with scape longer than other joints combined, club C-jointed. 



Prothorax 6x9 mm., considerably wider than the elytra at base, anterior 

 angles rounded and convex, sides lightly arched, a small sinuation preceding the 

 sub-posterior tooth, this followed by oblique arcuate excision to the true base; 

 narrowly bordered throughout, lateral border entire or, sometimes, feebly crenu- 

 lated by an irregular row of setiferous punctures. Surface mirror-like, sparsely 

 and finely punctate, the punctures almost evanescent at middle, larger at sides, 

 with a strong medial groove, two small foveae near middle of each lobe and a 

 depressed area at sides. 



Sciitellum transversely oval, its border raised. 



Eb/tra about as long as wide (9 mm.), sides a little explanate, scarcely 

 wrinkled, with a row of large punctures forming inner boundary of margin; 

 the edge of suture carinate, and two obsolescent ridges perceptible on basal area, 

 one parallel to suture, the other oblique; surface mirror-like with some sparse, 

 minute punctures to be seen with a lens. Flanks of prosternum sparsely and 

 finely punctate and setiferous, abdomen more coarsely punctate, the two last 



