578 NOTES ON AUSTRALIAN COLKOPTERA, 



strongly directed outward, furnish another very distinctive 

 character, and yet another consists in the very short antennal 

 scape strongly and evenly thickened from its base to its apex. 

 The elytral tubercles are a little more elevated in the smaller and 

 narrower sex than in the other. In the former the apical ventral 

 segment is deeply sulcate down the middle ; in the latter the last 

 segment bears a very large roundish fovea, with an elevated 

 border except in front. 



S. Australia ; Fowler's Bay. Also from Israelite Bay, W. 

 Australia (Mr. French). 



DiALEPTOPUS LUGUBRIS, Sp.nOV. 



Elongatus ; niger, indumento sordide ochreo plus minus tectus ; 

 rostro transverso in medio late profunde sulcato ; antennis 

 minus crassis, scapo extrorsum minus incrassato minus brevi 

 (quam tarsorum anticorum articulus 4"* vix breviori), funiculi 

 articulis 1° et 2° ceteris parum lougioribus ; prothorace apice 

 bilobo, lateribus sat rotundatis ; elytris prothorace pauUo 

 latioribus, tuberculis conicis in seriebus 2 (interiore 3 vel 4, 

 exteriore 3 vel 4 vel 5, constitutis) armatis, inter haec dorso 

 granulis foveisque obscure ruguloso, lateribus crassiss^ime 

 seriatim foveolatis, latitudine trans processus humerales quam 

 trans prothoracem haud minori. 



[Maris (?) long. 6, lat. 2| lines ; feminse (?) long. 8, 

 lat. 3 lines. [The width is measured across oppo- 

 site tubercles.] 



Closely allied to the preceding but more elongate, of more 

 sombre appearance, and with longer legs and tarsi ; the scape of 

 the antennae is more slender and elongate, being of about the 

 same length as the claw joint (exclusive of the claws) of the front 

 tarsi (in D. validus much shorter than the same joint). The 

 number of tubercles in the rows on the elytra is very variable 

 even in an individual example (in one before me one elytron has 

 5 tubercles in the external and 4 in the inner row, while the 

 other elytron has only 3 in each row) ; they are much more erect 



