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Further Notes on Australian Coleoptera, 

 with Descriptions of New Genera and 

 Species, 



By the Rev. T. Blackburn, B.A. 



[Read April 16th, 1897.] 



Part XXI. 



PECTINICORNES. 



CERATOGNATHUS. 



C. Frenchi, sp. nov. Mas. Minus elongatus, sat latus, sat 

 parallelus ; insequalis ; inrequaliter sat fortiter punctulatus ; 

 niger, squamis crassis albidis sparsim instructus, antennis 

 picescentibus ; capite medio tuberculo magno bifido et 

 utrinque supra oculos cornu brevi sat acuto armato, oculis 

 transversis minus convexis ; mandibulis quam caput paullo 

 longioribus, curvatis, ad apicem sursum compresso-dilatatis, 

 margine apicali processu dentiformi sat elongato armatis ; 

 mento ut lamina erecta transversa posito, hoc sparsim grosse 

 punctulato setoso (in medio baud canaliculato) ; prothorace 

 transversim quadrato, antice haud angustato ; elytris 3 vel 

 4 plus minusve distincte costatis ; antennarum flabellis 

 quam articuli ceteri conjuncti haud brevioribus. Long, 

 (mands. excl.), 6 1.- lat., 24 1. 

 The form of the mentum (resembling the erect part of that 

 organ in Cryptodus caviceps, Westw.) and the shape of the eyes 

 are suggestive of close affinity between this insect and C. menti/er, 

 Westw. I have not seen the latter but judging from the descrip- 

 tion of it the present species differs inter alia by the absence of 

 a median tooth on the inner margin of the mandibles, by the 

 strong erect process on the clypeus above each eye and by the 

 form of the mentum which is neither sulcate down the middle 

 nor emarginate at the apex. 



Victorian Mountains ; taken by Mr. Giles. 



LAMELLICORNES ( Dynastides ). 

 ISODON. 



/. novitius, sp. nov. Mas. Brevis, subovatus ; nitidus ; brun- 

 neo-rufus, hie illic incerte infuscatus ; clypeo antice modice 

 (ut /. pecuarii) producto bidentato, ad latera nee acute nee 

 extrorsum ultra oculos producto, crebrius rugulose (ut 



