52 



Trichalns from Tasmania (Erickson's locality) which I believe to 

 be discoideus and from which the present insect differs inter alia 

 by the very much larger areolae into which its elytral interstices 

 are divided ; they are like those of Metriorrhynchus (Stadenus) 

 inquinulus, Waterh. 



Victoria ; Dividing Range. 



T. distinctus, Lea. The description of this species scarcely 

 differs from that of T. ampliatus, Waterh., and both descriptions 

 might well be founded on the same insect as Lycus ochraceus r 

 Dalm. 



METRIORRHYNCHUS. 



M. insignipennis, sp. nov. Mas. Totus niger ; prothorace 

 7-areolato ; rostro fere nullo ; elytris costis longitudinalibus 

 4 . instructis ; hse costae costulis transversis numerosis bene 

 definitis inter se junctae sunt, ita ut in utroque elytro areolae 

 quadratae longitudinaliter 5-seriatim positae sunt ; antennis 

 corporis dimidio longitudine sat aequalibus, sat fortiter 

 compressis, articulis omnibus (basali 2 C que exceptis) quam 

 latioribus plus minusve longioribus, articulo 3° 4° aequali. 

 Long., 3|— 4 1.; lat., 1 1. 



Although the rostrum is very short it cannot be called quite- 

 non-existent, the distance from the base of the antennae to the 

 base of the maxillary palpi being not much shorter than the 

 length of one of the latter. The elytra have each four discal 

 costae without any trace of intermediate elevated longitudinal 

 lines, — so that the sculpture of each elytron may be said to 

 consist of five rows of well-defined areolae separated from each 

 other by longitudinal costae of which the second is the most 

 conspicuous. This sculpture is suggestive of Mr. Waterhouse's 

 genus Xylobanus but the costulae connecting the elytral costae are 

 not uniformly transverse ; they resemble those of M. scalaris as 

 figured by Waterhouse (Tr.E.S., Lond., 1877, PI. I., fig. 56) and 

 in any case Xylobanus does not appear to me capable of being 

 maintained as more than a section of Metriorrhynchus. The 

 second joint of the antennae is scarcely visible. 



Tasmania. 

 M. atratus, Fab. Fern. Totus niger ; prothorace 7-areolato ; 

 rostro fere nullo ; elytris costis longitudinalibus discoidalibus 

 4 instructis, interstitiis biseriatim indistincte areolatis (series 

 lineis indistincte, — antice magis distincte, — elevatis separan- 

 tur); antennis quam corporis dimidium sat brevioribus, sat 

 fortiter compressis, articulis 3° 9° quam latioribus vix vel 

 haud longioribus, 10° quam latiori multo longiori quam 9 US 

 multo angustiori. Long., 4^ 1.; lat., 1^ 1. 



Very near M. hcemorrhoidalis, Er., of which I should be dis- 





