OF NEW ZEALAND. 327 



towards the shoulders ; they are closely sculptured, so as to appear 

 rough and as if studded with small, transverse, granular elevations, and 

 clothed with fine hairs. Legs pubescent. Under-side blackish, pubes- 

 cent. Metasternum longitudinally impressed on the middle. 



The male has longer antennae than the female, and is smaller. 



Length 2-J-2 ; breadth, -i line. 



A common species in all the Auckland districts I have visited. 



592. A. nigricans, n.s. Black, pubescent, antennae blackish, 

 with the apex of each joint pallid, legs fuscous. 



This species closely resembles the preceding one in form and sculp- 

 ture, but the thorax is rather shorter, the side rims are thicker, and this 

 thickened part usually extends almost to the hind angle, so that there is 

 only a mere notch between it and the angle, which is less easily seen 

 than in the typical species. 



Length, 2^-2^ ; breadth, f line. 



Tairua. 



Both Dr. Sharp and I were under the impression that this was 

 merely a concolorous variety of A. fulvithorax. I, however, am now of 

 a different opinion, owing to observations on the insects in their natural 

 state, rather than any evident difference in form or sculpture. 



593. A. STlbnuda, n.s. Blackish, shining, the legs and basal joint 

 of the antennae yellowish, the latter infuscate-black and rather robust. 



This species may be readily identified by the differences in coloura- 

 tion, its shining upper surface nearly destitute of pubescence, the more 

 regularly thickened thoracic margins, much less prominent eyes, more 

 rugose-punctate elytral sculpture, and more robust form. 



In one of my two specimens the elytra are quite nude, the second 

 seems so, but when carefully examined, it may be seen that they bear 

 very fine hairs. Under-side blackish, rather dull, finely pubescent ; 

 metasternum punctulated and grooved down the middle. 



Length, 2 \ ; breadth, i line. 



Found by Professor Hutton at Queenstown, Otago. 



594. A. tenuiculus, n.s. Pubescent, rather shining, slender, black, 

 legs and antennae fuscous. 



Head with a short muzzle, slightly uneven, and finely sculptured. 

 Prothorax transversal, its apex almost straight in the middle, oblique 

 towards the sides, which, therefore, are rather short and straight, the 

 margins are raised, those at the sides rather broad but reflexed only near 

 the front, and there for a short distance only, the posterior angles not 

 distinct from the side rims ; its surface has only a few fine indistinct 

 punctures. The elytra are somewhat depressed along the suture, and 

 are finely and rather indefinitely sculptured, one example having the 

 elytra more rugosely impressed than the other ; they are clothed with 

 greyish hairs. 



Length, ij ; breadth, | line. 



