41 



duplolongiori; prothorace sat cylindrico, ut caput punctulato, 

 subtiliter transversiai rugato, lateribus apicem versus tuber- 

 culo armatis ; elytris ad apicem truncatis, antice granulis sat 

 numerosis instructis, postice puncturis sparsis iinpressis 

 Long., 8|— 9 1.; lat., 2f 1. 

 I have two specimens of this insect before me. It is distinguish- 

 able from most of its congeners by its pubescent clothing being 

 all but entirely of a pale ashy colour (the only variegation consist- 

 ing in a faintly ochreous tone on some parts of the sterna). 

 Probably in a perfectly fresh specimen this pubescence covers the 

 derm everywhere except w^here it is interrupted by small granules 

 and small sparse punctures. In both the examples before me, 

 however, the humeral region of the elytra and some blotches 

 somewhat behind the middle of the elytra are more or less 

 denuded, but I suspect that this is due to abrasion. Another 

 very distinctive character consists in the form of the clypeus the 

 front of which is much narrowed, its apex being less than half 

 the width of the interval between the lower lobes of the eyes, 

 and being triangularly emarginate, — the sides of the emargina- 

 tion acute. I do not think there is any other intelligibly 

 described species combining the characters of Rhytiphora (e.g., 

 head strongly convex above the antennal tubers, eyes not finely 

 granulated) with a clypeus of the form just specified, the basal 

 part of the elytra (as in R. latifasciata, Pasc.) without any 

 basal crest or other conspicuous elevation, vestiture of a uniform 

 colour and antennae strongly and thickly (even more so than in 

 R. Argus, Pasc.) fringed beneath with piiosity. 

 N.W. Australia. 



B. Simsoni, sp. no v. Robusta ; ferruginea vel rufopicea, anten- 

 nis (articulo basali excepto) obscurioribus ; pube cinerea 

 fulvaque variegata ; capite sparsira subobsolete punctulato 

 (sed juxta oculorum lobum superiorem puncturis nonnuUis 

 profundis impresso), linea mediana longitudinali impress©, 

 supra sat elevato-convexo (fere ut R. latifasciaicB, Pasc), 

 clypeo antice lato truncato; oculis modice granulatis (quam 

 R. laiifasciatcB minus fortiter) ; antennis (articulo basali 

 excepto) pube nigra albidaque variegatis, subtus pilis sub- 

 tilibus sparsis fimbriatis, articulo 3° quam V^"" 2"' que con- 

 juncti parum longiori ; prothorace quam longior ut 4f ad 4 

 latiori, sat cylindrico, vix manifeste punctulato, sat fortiter 

 transversim (et pone medium confuse) rugato, lateribus fere 

 inermibus ; elytris longitudinaliter late leviter bisulcatis, in 

 parti bus anticis tribus costis brevibus obliquis vel trans versis 

 granulisque nitidis inordinatim instructis, sparsim minus 

 fortiter punctulatis, ad apicem subtruncatis. 

 jVIaris antennis quam corpus vix brevioribus ; segmenti 2' ven- 



