304 Transactions. — Zoology. 



Anchomenus laivsoni, n. sp. 

 A. oblongus, gracilis, nigro-piceus seneo-tinctus, nitidus ; partibus oris, 

 antennis, pedibus (femoribus exceptis), thoracis elytrorumque marginibus 

 lateralibus piceo-rufis ; capite convexo ; thorace paulo transverso, subquadrato, 



lateribus rotundatis, postice plus quam antice angustato, angulis posticis 



obtusis sed distinctis ; elytris fortiter striatis, interstitiis subconvexis, tertio 



tripunetato. Long. 4 lin. M. P. 



Longer and proportionally narrower than A. feredayi. Thorax conspicu- 

 ously longer, the posterior narrowing more gradual, and slightly incurved 



before the hind angle ; "striae of the elytra' deeper, and interstices more convex. 



The antennae, parts of the mouth, and legs also differ in being wholly dull 



rufous, except the femora, which are blockish. The anterior angles of the 



thorax are not at all advanced and are rounded off. 



Auckland. Collected by Mr Lawson. 



Anchomenus submetallicus. 



Colpodes submetallicus 9 White, I.e. p. 2. 



According to the type in the British Museum, this is a species closely 

 allied to the common Australian A. marginellus, Erich son ; it differs in being 

 less shining, and in the much shorter thorax, the sides of which narrow much 

 more abruptly to the front angles. It is common and generally distributed in 

 New Zealand ; and I have compared a long series with an equal number of 

 the Australian species. 



The species has none of the distinguishing characters of Colpodes ; the 

 fourth joint of the tarsi, however, is rather more distinctly triangular and 

 emarginate than is usual in Anchomenus. It is closely allied to our A. 

 feredayi, but is much larger, more brassy, and with clearer yellow margins to 

 the thorax and elytra, besides having yellow legs. 



Tropopterus sulcicottis, n. sp. 

 T. ellipticus, niger, nitidus ; antennis, palpis et pedibus piceo-rufis ; capite 

 spatio inter sulcos laterales haud carinato ; thorace quadrato, vix transverso, 

 medio rotundato, antice plus quam postice angustato, angulis posticis productis 

 rectis, basi utrinque fovea sulciformi ; elytris convexis, striato-punctatis. 

 Long. 2>\ lin. F, 



Resembles the genus Ooptents, but distinguished by the pubescence of the 

 antennae not beginning before the fourth joint, and by the labial palpi having 

 their terminal joint obtuse-ovate, instead of acuminate. Agrees in all essential 

 points with the Chilian genus Tropopterus ; allied to Colpodes, in which the 

 forehead has on each side two grooves with a carinate interval between them. 

 The eighth and ninth striae of the elytra are sunk in a broad groove near the 

 apex ; and the seventh at that part is bordered by a sharp carina. The sixth 

 and seventh striae are nearly obsolete. 



