Bates. — On the Geodepha^gous Coleoptera of Neio ZealoAid, 311 



Euthenarus h^emcolUs, n. sp. 



E. oblongus, fusco-seneus ; elytris subcupreis; antennis basi, palpis apice, 

 genibusque piceo-rufis ; tborace postice paululum angustato, angulis posticis 

 obtusis fere rotundatis, fovea utrinque lata sparsim punctulata j elytris acute 

 stria tis, interstitiis planis. Long. 2| lin. M. F. 



Lake Coleridge; tinder stones in dry lagoon (C. M. Wakefield, Esq.). 



Immature specimens have testaceous-yellow legs and pale under surface of 

 body j but the dark brassy colour of the head and thorax and cupreous elytra 

 remain in all the numerous individuals sent. The hind angles of the thorax 

 are distinct in some examples and perfectly rounded off in others j the basal 

 fovese also vary in the amount of punctuation, which is always rather coarse. 



Euthenarus 2^f^'ncticoU{s, n. sp. 



E. oblongus, fusco-piceus seneo tinctus vel cupreo-seneus j antennis basi, 

 palpis basi et apice, pedibus (femoribus interdum exceptis) rufo-piceis ; thorace 

 longiore, postice subsinuatim paulo angustato, angulis posticis fere rectis, fovea 

 basali grosse punctata ; elytris apice fortiter sinuatis, subtruncatis. Long. 2 J 

 lin. M. F. 



Apparently distinct from E. hrevicolUsj although similar in size and 

 colouration. It is decidedly slenderer, with longer thorax, the posterior 

 narrowing of which is slightly incurved and the hind angles more distinct. 

 The general colour is less metallic, and the side rims of the thorax are pale, 

 which is sometimes the case with E. hrevicoUis. A better distinction is the 

 more transverse and stronger sinuation of the apex of the elytra, the edges 

 external to the sinuation being more flattened outj they are finely and 

 sharply striated in the same manner. 



Auckland. Several examples from Mr. Lawson and Mr. H. Edwards. 



Subfamily Trechin^. 



Oopterus rotundicoUis, "White, Yoy. Ereb. and Terr., Ins. p. 6. 

 Bay of Islands. 



Oopterus Icevicollis, 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 Tropopterus, belonging to a 

 quite different subfamily, the resemblance in general form between the two 

 being very great. 



Subfamily Bembidiin^. 



Tachys antarcticus, n. sp. 



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

 flavo-testaceis ; capite foveis frontalibus, magnis, profundis, interspatio elongato. 



