54 COLEOPTERA 



apex of the elytra, the edges external to the sinuation being more 

 flattened out ; they are finely and sharply striated in the same manner. 



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



NOTE. I found a number of specimens at Tairua, but only two or 

 three near Whangarei Harbour. 



Group POGONID^E. 



Ligula free at its extremity. Terminal joint of the palpi slightly 

 oval or obconical, very rarely securiform. The two first joints of the 

 anterior tarsi of the males dilated, triangular or cordiform, nearly always 

 squamulose below. Claws simple. 



1 Oopterus. 



Gu'erin; Voy. Er. Terr., Ins., p. 5. 



Palpi ending in a conical joint, which is sharp at the end ; the 

 penultimate joint of the maxillary palpi as long as the last ; four first 

 joints of the anterior tarsi dilated in the males, the two first joints wider, 

 somewhat elongated on the inner side ; antennce short, submoniliform, 

 with the last seven joints longer than wide j body thick, oval. 



105. O. rotundicollis, White \ Voy. Er. Terr., Ins., p. 6. 

 Thorax rounded, without any groove, near the posterior margin depressed 

 and closely punctured ; elytra with superficial strise formed by rows of 

 closely placed points ; whole insect of a pitchy brown ; the palpi and 

 legs of a lighter colour. 



Length, 2\ lines. 



Bay of Islands (Dr. Sinclair, Charles Darwin). 



1 06. O. laevicollis, Bates ; Entom. Man. Mag., vol. viii., 

 p. 14. O. clivinoide latior, multo minus convexo, thorace nequaquam 

 cordato ; nigro subseneo, labro, palpis, antennis, pedibus, elytrorumque 

 margine deflexo rufo-piceis ; capite sulcis frontalibus vix impressis, bre- 

 vibus ; thorace quadrato, lateribus medio rotundatis, antice et postice, 

 haud sinuatim, leviter angustato, angulis posticis subrectis, supra, Isevi 

 basi utrinque bifoveato, foveis haud distincte punctatis ; elytris ellipticis, 

 puncto-striatis, interstitio 3 io quadripunctato. 



Long., 2 f lin. $ . 



Group BEMBIDIIDJE. 



Ligula not trigonal ; its paraglossse straight. Palpi smooth ; the 

 penultimate joint dilated apically ; the last very much more slender, 

 and generally very small, inserted at the summit of the preceding. 

 Prothorax of variable form. Tarsi filiform, or, among the males, with 

 the basal joint very large, oblong, nearly always squamulose underneath; 

 the second cordiform, and a little wider than the following two. 



