602 REVISIONAL NOTES ON AUSTRALIAN CAKABIDiE, V., 



rior margin truncate in middle ; anterior angles widely 

 rounded and more prominent than median part ; base bisinu- 

 ate ; basal angles obtuse, but marked ; disc not punctate, 

 transversely striolate ; margins wide ; border reflexed, crenu- 

 late posteriorly. Elytra parallel (19-5x10 mm.); interstices 

 depressed (especially in 9 ) i third, fifth, and seventh subcos- 

 tate towards base, even interstices biseriately punctate to- 

 wards base, triseriate posteriorly, eighth irregularly 5-seriate. 

 Ligula wide, depressed ; anterior margin rotundate. Gula with 

 a wide short bifid prominence, the two points short, erect, 

 obtuse. Maxillae prominent at base, cardo not projecting 

 beyond stipes. Length 32, breadth 10 mm. 



Hah. — Western Australia: Condon (H. M. Giles). Two 

 specimens (cT 9) have been examined. 



I have identified G. rugaticolle Blkb., from the description 

 (founded on 9)- It is allied to G. grande Macl., but differs 

 by elytra with interstices more closely punctate, second 3- 

 seriately punctate, except just near base ; mentum with median 

 tooth shorter, wider, rounded at apex; cf, with prothorax 

 not strongly prominent above head, but actually less promi- 

 nent at middle than at anterior angles; gular horn much 

 shorter and more deeply divided into two parts. Comparing 

 the anterior margin of the prothorax with that of G. grande 

 for both sexes, we find — cf , not strongly and roundly advanced 

 in the middle, but less prominent in middle than the anterior 

 angles, though these are very little advanced : 9 j middle part 

 truncate, and decidedly less prominent than anterior angles 

 (in G. grande, middle part truncate, but a little more promi- 

 nent than anterior angles). 



GiGADEMA GRANDE Macleay. 



Trans. Ent. Soc. N.S.Wales, i., 1864, 108; c/, Chaudoir, 

 Rev. & Mag. Zool., 1872, 215; Gestro, Ann. Mus. Civ. 

 Genova, vii., 1875, 879. 



Depressed, carbonarious. Prothorax strongly ampliate, 

 strongly obliquely angustate to base without sinuosity ; apex 



