BY THE REV. T. BLACKBURN. 503 



subtns crebre rugulose (prosterno minus crebre magis crasse) 



punctulato. [Long. 4|, lat. 11 lines. 



Near D. lugubris, Bonv., but inter alia differently coloured, the 



underside, e.g., being (not "black " but) dark reddish-brown, and 



having the prothorax not at all dilated near the front. 



S. Australia ; basin of Lake Eyre. 



Lycaon expulsus, Bonv. 



I have before me an example which I took under bark of 

 Eucalyptus on one of the Australian Alps in Victoria, and which 

 appears to be this species although differing (sexually I think) in 

 antennal structure from the type ; joints 4-8 being almost equal 

 inter se (4 and 7 slightly the longest of them), joint 9 equal to 6-8 

 together, 10 narrower than 9, scarcely so long, 11 as narrow as 

 10 and longer than 9. 



ELATERID^. 



Lacon brightensis, sp.nov, 



Opacus; nigro-fuscus, antennis pedibusque obscure rufescenti- 

 bus ; obscure squamosus ; capite prothoraceque crebre sat 

 fortiter punctulatis ; illo subplano vix sequali ; hoc vix trans- 

 verso, minus convexo, late obsolete canaliculate, foveis 4 in 

 disco impresso, basi quam margo anticus duplo latiori, lateri 

 bus obsolete crenulatis antice rotundatis postice vix sinuatis, 

 angulis posticis rectis intra marginem carinatis ; elytris quam 

 prothorax vix latioribus vix duplo longioribus, sat depressis, 

 vix striatis, striis distincte sat fortiter nee crebre punctulatis, 

 sutura et interstitio 6° totis (interstitiis 2° 4° que postice) 

 convexis, angulis humeralibus subrectis ; sulcis tarsorum 

 in prosterno sat angustis bene determiuatis, in metasterno sat 

 distinctis. [Long. 3 r 4 ' lat ' l]" 1 f lines - 



To the eye the elytra appear decidedly, but when measured they 



are found to be scarcely, less than twice as long as the prothorax. 



The four rather deep and conspicuous foveas placed as the corners 



of a square on the disc of the prothorax are a well-marked 



character. 



