274 Mr. H. W. Bates on the Geodephagous 



Subfamily Trechinm. 

 Odpterus rotundicollis, White, Voy. Ereb. & Terr., Ins. p. 6. 

 Bay oMslands. 



Odpterus IcevicolUs, Bates, Entom. Monthly Mag. vol. viii. 



1871, p. 14. 

 New Zealand ; precise locality unknown. 



Two other species of this genus are described from the 

 Falkland Islands. 



It is very easy to confound this genus with TropopteruSy 

 belonging to a quite different subfamily, the resemblance 

 in 'general form between the two being very great. 



Subfamily Bembidiinje. 



Tachys antarcticus, n. sp. 



T. oblongo-ovatus, convexus, testaceo-rufus, nitidus, palpis pedibus- 

 que flavo-testaceis ; capite foveis frontalibus magnis, profundis, 

 interspatio elongate, convexo : thorace subcordato, lateribus antice 

 valde rotundatis, post medium sinuatim angustato, angulis posticis 

 productis acutis ; supra antice convexo, postice transversim de- 

 presso, utrinque foveolato, Isevi : elytris ovatis, humeris rotundatis 

 utrinque striis 3 prope suturam, fortiter impressis, subpunctatis ; 

 interstitio tertio bipunctato. Long. | lin. 



In form intermediate between T. hcemorrhoidalis, Dj., and 

 T. globuhis, Dj. As convex as the latter, but much more 

 slender, the thorax especially being narrower (much narrower 

 than the elytra), more cordiform, and the elytra more ovate 

 and rounded at the shoulders. The antennae are wanting in 

 both my specimens. 



Auckland ? (H. Edwards, Esq.) . 



Bemhidium [Peryphus) maorinum, Bates, Entom. Monthly 

 Mag.iv. p. 56 (1867). 



Christchurch {Mr. Fereday). 



Bemhidium [Peryplius) chariUy Bates, I. c. p. 79. 



Christchurch {Mr. Fereday). 



I have not again received either of the above species. They 

 form a distinct section, near Peryphus, distinguished by the 

 setiferous punctures of the fifth as well as the third interstice 

 of the elytra. In form they closely resemble the European 



