185 



PAPERS READ. 



NOTES ON AUSTRALIAN COLEOPTERA, WITH 

 DESCRIPTIONS OF NEW SPECIES. 



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



Part XIII. 



LAMELLICORNES. 



Heteronyx. 



In the tabulation of part of this genus, in P.L.S.N.S.W. 1891, 

 p. 488, last two lines on the page, transpose " long " and " wide." 



Xynedria, gen.nov., Pentodontidarum. 



(J. Antennae lO-articulatae, flabello mediocri 3-articulato, hiijus 



articulo basali externe setis erectis dense vestito ; mentum 



compressum porrectum ; mandibulae extus rotundatse por- 



rectse ; clypeus abrupte verticalis, supra ut cornu erectum 



acutum productus, ad apicem rotundatus modice reflexus ; 



prothorax (exempli typici) a basi ad apicem late profunde 



excavatus, partis excavatse lateribus pone medium obtuse 



elevatis ; tibiae anticae extus fortiter tridentatae ; femora 



(praesertim posticae) valde incrassata ; tibiae posticae brevis- 



simae latissimae fortiter transversim 2-carinatae ; tarsorum 



posticorum articulus basalis fere cylindricus. 



This remarkable Dynastid is, I think, near Fseicdoryctes, with 



which genus the structure of its legs agrees in every respect 



except in its hind tibiae being transversely bicarinate and the 



basal joint of its hind tarsi more cylindrical ; inter alia it dift'ers 



from Pseudoryctes by its absolutely vertical clypeus produced 



upwards into a well developed pointed horn and by the absence of 



a horn on the front margin of its prothorax'. The peculiar position 



of the clypeus is reproduced in Palmerstonia, but without the horn 



(the male of P aimer ^tonia, however, may have a horn) ; but in 



