OF NEW ZEALAND. 465 



majores ; femoribus fortiter clavatis, infra dente magno armatis ; tibiis 

 arcuatis, baud compressis, omnibus apice muticis ; tarsi's articulo tertio 

 late bilobo ; unguiculi subdentati ; cox<z anticae contiguse, intermediae et 

 posticae late distantes. Abdomen segmentis duobus basalibus valde 

 ampliatis. 



It is with some doubt that I refer this genus to the Erirhinincc. In 

 the form of the hind legs it approaches the two preceding genera 

 ( Stephanorhynchus and Hoplocneme); but the head, not constricted 

 behind to form a neck, would seem to indicate a different type. 

 Ixalma, another anomalous genus, with somewhat similar legs, but 

 having a free pygidium, I refer to the neighbourhood of Tachygonus. 

 M. Roelofs (Ann. Soc. Belg., xvii., p. 126) places his genus Celia, 

 apparently identical with Ixalma, among the Eugnomides, i.e., with the 

 Erirhinince. These are all isolated forms ; but I think the pygidium 

 offers a more important character than the separation or the contiguity 

 of the anterior coxae. The species described below differs considerably 

 in colouration, some individuals being of an almost uniform dark brown, 

 others pale brown on the disc of the elytra; some have the elytron 

 prettily variegated a central dark triangular spot with a light semi- 

 circular line behind, and other variations. 



825. P. variabiliS, Pascoe; Ann. Mag. Nat. Hist.,Jany., 1876. 

 P. oblonga, fusco- vel brunneo-squamosa, aliquando variegata ; antennis 

 fulvis, apicem versus infuscatis ; prothorace subcylindrico, in medio 

 bituberculato ; elytris basi prothorace fere triple latioribus, supra tuber- 

 culatis, antice subdepressis, late striato-punctatis; corpore infra sparse 

 punctate. 



Long., if lin. 



Auckland (Captain Broun). 



826. P. demissa, Pascoe; Ann. Mag. Nat. Hist., July, 1876. 

 P. anguste ovata, fusca vel silacea, griseo-squamosa ; rostro lato ; an- 

 tennis tenuatis; prothorace quadrato, supra haud tuberculato; elytris 

 basi quam prothorace fere duplo latioribus, haud tuberculatis, striato- 

 punctatis, pone medium fascia notatis ; femoribus posticis minus clavatis, 

 et nigro-annulatis. 



Long., i Jim. 

 Tairua (Captain Broun). 



Much narrower than P. variabilis, and apparently an extreme form 

 of the genus. 



NOTE. Both species occur at Tairua and Whangarei Heads. 



Brexius. 



I have not been able to refer to the description of this genus, and I 

 have not a specimen of any of the species belonging to it. 



827. B. aSCitUS, Pascoe ; Ann. Mag. Nat. Hist., July, 1876. B. 

 angustus, vix depressus, piceo-brunneus, squamis obscure griseis tectus ; 



L iii 



