151 



and proportions of their joints do not seem to differ materially 

 from the same in C. advena. The antenn8e are very similar to 

 those of C. advena, though the second joint is somewhat smaller 

 in proportion to the first and third ; the gense are acute as in 

 0. advena, and the prothorax has pronounced anterior angles of 

 the same kind as in that insect (though less strong) its form how 

 ever being more narrowed hindward and the sides being finely 

 crenulate. These particulars will no doubt enable my note to be 

 corrected if I have overlooked any described genus to which this 

 species ought to be referred rather than Caihartus ; there cer- 

 tainly is no other genus known as Australian in which it could 

 be placed. 



C. (? ) cairnsensis, sp nov. Sat elongatus ; sat angustus ; 



breviter albido-pubescens ; rufo-testaceus ; capite confertim 



leviter subrugulose punctulato, aequaliter convexo ; pro- 



thorace quam latiori vix longiori, supra ut caput punctulato, 



postice manifeste angustato, in dorso longitudinaliter vix 



planato, lateribus subsinuatis subtiliter crenulatis, angulis 



anticis subdentiformibus posticis sat rectis ; elytris subtilis- 



sime striatis, interstitiis uniseriatim punctulatis (puncturis 



minus fortiter impressis). Long., 1 1.; lat., t^ 1. (vix). 



The prothorax is I think very slightly longer than wide, but it 



is difficult to be quite sure of one's measurements with so very 



small an insect ; to a casual glance it looks decidedly longer than 



wide. This species is perhaps near G. rugosus, Gr. (from New 



Guinea), but differs from the description of that insect in having 



its pronotum evenly punctulate, and also (judging from Grou- 



velle's figure) by its form somewhat narrower and more elongate 



with its prothorax evidently more elongate and more distinctly 



narrowed behind. The general character of the sculpture seems 



to be very similar to that of C. rugosus. 



N. Queensland (Cairns); given to me by Mr. Koebele. 



SILVANUS. 



S. hrevicornis, Er. The specimen (from Tasmania) that M. 

 Grouvelle sent me ticketed " Myraholia grouvelleana, Reitt/* 

 seems to me to be undoubtedly Silvanus hrevicornis, Er. (also 

 from Tasmania). The insect ought therefore I think, to be called 

 Myraholia hrevicornis, Er. I believe this synonymy has not 

 been previously noted. 



S. casta7ieus, Macl. Mr. Lea has been good enough to send 

 me some specimens of a SUvanus under this name. If they are 

 correctly named Macleay's species is not distinct from 

 8. unidentatus, Fab. 



S. aridulus, sp. nov. Modice angustus ; sat depressus ; sub- 

 tiliter pubescens ; piceo-brunneus, elytris pedibusque nonni- 



