606 REVISIONAL NOTES ON AUSTRALIAN CARABID-^, V., 



sider G. intermedium Gestro, a variety, and G. eremita Blkb., 

 as conspecific. Found under logs, on the ground. 



A specimen (cT) from Champion Bay is evidently, by its 

 large head, prothorax with juxtabasal sinuosities of sides less 

 marked than in G. longijjenne Germ., and elytra narrowed to 

 base, the G. hostocki of Gestro; this T consider the typical 

 form. A specimen (cT) from Sandstone, near Cue, differs 

 from the typical form by prothorax decidedly sinuate on sides 

 near base ; elytra with interstices more convex, more strongly 

 biseriately punctate, the punctures closer together in the rows , 

 this is G. eremita Blkb., the. types of which species I have 

 examined in the South Australian Museum ; at present, I do 

 not think G. eremita can be maintained as a variety. 



Var. intermedia Gestro. Length 30-42 mm. I have identi- 

 fied a specimen (cT) from Jerilderie, N.S.W., as G. interme- 

 dium Gestro; it differs from the typical form of the species by 

 head slightly smaller ; prothorax far more strongly sinuate on 

 sides posteriorly, anterior angles less prominent ; elytra not 

 narrowed to base, interstices more convex, punctures closer 

 together in the rows. Specimens((J) from Lake Hattah, Victoria, 

 have the prothorax more convex than the Jerilderie specimen, 

 but are conspecific with it. Specimens {$) from Cunnamulla, 

 Queensland (received from Mr. Lea), are larger (42 mm.), 

 with the prothorax larger and more ampliate, median part of 

 anterior margin truncate and slightly more prominent than 

 anterior angles, but I cannot differentiate this form from var. 

 intermedia. 



It may be noted that, in var. intermedia, there is a ten- 

 dency for the sixth interstice of the elytra to become triseriate- 

 ly punctate towards the apex, but I have never seen this 

 character in the western forms of G. hostocki. We may sup- 

 pose var. intermedia to be an older form than the western G. 

 hostocki. In G. hostocki and its varieties, the prothorax is 

 very free from punctures on the disc. 



G. hostocki var. intermedia ranges from the Mallee districts 

 of North- Western Victoria, through the western parts of New 

 South Wales, into South-Western Queensland. 



