Australian Coleojptera. 215 



of the latter) are very Eucnemid in appearance. The form of 

 the prothorax (with the base nearly straight and the hind angles 

 not produced landward and only feebly produced outward) is 

 unlike the form in any genus known to me in any family in 

 which the structural characters in general are not totally 

 different from those of the present species. As far as the 

 recognition of the insect is concerned there can be no difficulty 

 on account of its porrect arched mandibles together enclosing 

 a void space ; in combination with the extraordinary structure 

 of the abdomen (at any rate in one sex), there being on either 

 side a wide and deep excavation very minutely punctulate — in 

 strong constrast to the coarse puncturation of the rest of the 

 surface — running from the base of the 2nd segment to the apex 

 of the 3rd segment. 



I dug this curious insect out of the decayed stump of a tree 

 many years since, and cut the stump to pieces without finding 

 another specimen, so its habitat may have been accidental. I 

 have never met with another example since, nor have I seen 

 anything like it in any collection. 



E. /ugubris, sp. nov. Piceo-niger, antennis tarsisque subrufes- 

 centil)us; opacus; setis brevibus pallidis sparsim vestitus; capite 

 crebre sat fortiter rugulose punctulato ; prothorace sat fortiter 

 transverso, subinsequali, subtilius creberrime aspere punctulato ; 

 elytris crebre sat fortiter punctulato-striatis, interstitiis ani,'ustis 

 transversim rugulosis ; corpore subtus pedibusque sat rugulose 

 punctulatis. 



Long. 41. Lat. 11. 



S. Australia (Eyre's Peninsula). 



EUCNEMID^. 



As I furnish, below, the diagnoses of three new genei'a of this 

 family and I cannot find that any tabulated exposition of the 

 characters of the Australian Eiicneinid genera has been hitherto 

 published (except in so far as they find a place in M. de Bonvou- 

 loir's work on the Euaiemidce of the world), it seems desirable 

 here to provide a tabulation of that description showing the 

 relation of the new genera to those previously known, and using 

 in the main the characters relied upon V>y il. de Bonvouloir. 



