aill. F. p. PASCOE ON THE CUltCULTONIDJE. 48S 



Onesoeus. 

 (Leptopsinte.) 

 nostrum capite duplo longius, incrassatum, arcuatum, squamosum, 

 sujjra subintegrum, apice iu plagam triaugulatam productum ; 

 sulcus transversalis nullus ; scrobes arcuatse, subapicales, pone 

 marginem oculorum inferum desinentes. , Oculi obovati, subde- 

 pressi, infra acuminati. Antennce breviusculse, squamosse ; scapo 

 oculum attingente ; fwiiculo 7-articulato, art. distinctis, duobus 

 basalibus lougiusculia, sequalibus, caeteris brevioribus, sequalibus; 

 clava OYSkU, basi attenuata. Prothorax parvus, transversus, 

 apice angustior, basi truncatus, lateribus modice rotundatus. 

 Scutellum parvutn. Elytra convexa, ovata, postice declivia. 

 Pedes subrobusti ; femora vix incrassata ; tibice breviusculae, 

 recta), postica3 corbulis cavernosis ; tarsi breves, sat lati ; uii- 

 guiculi liberi. Abdomen sutura prima arcuata, segmentis tertio 

 quartoque brevibus. 



The nearest ally to this genus at present appears to be Cata- 

 sarcus. . 



Onesorus maculosus. (PI. XIX. fig. 13.) 0. undique squampsus, 

 fuscus, in medio et ad latera griseis, maculis albis vel griseis variegatus ; 

 rostro apicem versus longitudinaliter biexcavato ; capite prothoraceque 

 griseis, hoc fusco-trivittato ; elytris globoso-ovatis seriatim punctatis, 

 punctis parvis, interstitio quarto lateribusque albo-maculatis ; infra 

 pedibusque griseis, clava antennarum, basi excepta, nigra. Long. 

 3f-4 lin. 



Hob. Cape York. 



Onesorus obesus. 0. fuscus, griseo-squamosus ; rostro in medio 

 leviter carinato ; prothorace rugoso-punctato, vittis tribus sordide 

 ochraceis notato ; elytris ampliatis, seriatim punctato-impressis, in- 

 terstitiis convexis, sordide ochraceis j infra pedibusque undique pal- 

 lide griseo-squamosis, pilis squamiformibus intermixtisj clava anten- 

 narum, basi excepta, nigra. Long. S-Sg lin. 



Hob. Western Austraba (Nicol Bay). 



In this species the triangular rostral plate is nearly hidden by 

 the vibrisssD arising from the rostrum. 



Onesorus tigrinus. O. undique sqiiamosus, albidus, fusco varius ; 

 rostro supra longitudinaliter excavato ; capite prothoraceque grise- 

 scentibus, hoc quinquevittato, vittis saturate fuscis, media latiore ; 

 scutello minuto, distincto, triangulari ; elytris breviter ovatis, modice 

 convexis, pone humeros subcallosis, striato-punctatis, punctis oblongis, 

 intcrstitiis convexis, quarto septimoquc fortitcr elcvatis, fusco-macu- 



