600 REVISIONAL NOTES ON AUSTRALIAN CARABID^E, V., 



Allied to G. granJe MacL, with which it has been confused 

 by Gestro and Bates, but differing by the male with submen- 

 tum without a prominent horn, and cardo of maxilla promi- 

 nent (in G. grande cf, the cardo of the maxilla is merely 

 slightly obtusely prominent) ; prothorax with widest part 

 situated further back ; sides less rotundate, far more strongly 

 angustate posteriorly, and with a strong antebasal sinuosity ; 

 elytra with second and third interstices not biseriately punc- 

 tate. The female shows the same difference from the male in 

 shape of prothorax, and puncturation of the second and third 

 interstices of the elytra as in G. grande; but does not show 

 differences in the form of the cardo of the maxilla nor of the 

 submentum, these being secondary sexual differences of the 

 male. 



It is evident that Gestro confused this species with G. 

 grande; the figure he gives as that of the prothorax of G. 

 graude 9 > is that of the prothorax of G. viaxUJare 9 • ^ 

 numerously represented series of specimens has been examined, 

 and no male specimen has had the bifid horn of the submentum 

 as in G. grande, nor has been without the prominent horned 

 cardo of the maxilla. 



GiGADEMA GULARE, n.Sp. 



cT. Depressed. Prothorax ampliate, strongly angustate to 

 base, anterior margin truncate, median part a little more 

 advanced than anterior angles, disc not punctate ; elytra stri- 

 ate, interstices closely punctate ; second, third, and fifth bi- 

 seriately punctate towards base ; submentum armed : mentum 

 strongly toothed ; ligula wide, roundly oblique on each side to 

 the obtuse apex, rather convex, subdepressed in middle. 

 Piceous-brown. 



Head large (6mm. across eyes): front lightly and widely 

 bi-impressed ; impressions subrugulose, space between them 

 transversely rugulose ; eyes very prominent. Labrum depress- 

 ed, closely punctate, except near base ; a well marked setige- 

 rous puncture on each side. Prothorax broader than long (51 



