304 Transactions. — Zoology. 



Aoichomemis laiosoni, n. sp. 



A. oblongus, gracilis, nigro-piceus oenco-tinctns, nitidus ; pavtibus oris, 

 antennis, pedibus (femoribus exceptis), thoracis elytrorumque marginibus 

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

 lateribus rotundatis, postice plus quain antice angustato, angulis posticis 

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

 triimnctato. Long. 4 lin. M. F. 



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

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

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

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

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

 thorax are not at all advanced and are rounded off. 



Auckland. Collected by Mr Lawson. 



Anchomenus suhmetallicus. 



Colpodes suhnetaUicus, White, I. c. 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 Ancliomenus. 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 sulcicolUs, n. sp. 



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

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

 medio rotundato, antice plus quam postice angustato, angulis j^osticis productis 

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

 Long. 3 J lin. F. 



llescmbles the genus Oopterus, but distinguished by the pubescence of the 

 antenna3 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 lias on each side two grooves with a carinato interval between them. 

 The eighth and ninth striaj 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 stria) are nearly obsolete. 



