136 NOTES OX AUSTRALIAN COLEOPTERA, 



in that of R. excavata the prothorax is said to be " medio postice- 

 que subinflatus," while in the other it is described as " medio 

 subincrassatus," and that R. excavata is said to be a little larger 

 than ruyosa. I have before me a short series taken in New South 

 Wales (some at least of them from near Bombala, — the habitat 

 assigned to B. caliginosa) which I cannot regai'd as representing 

 more than one species, and which seem as if they might include 

 all the above-named forms. I feel no doubt whatever as to their 

 being caliginosa ; some of them have the sides of the prothorax 

 a little sinuate behind the middle, which gives the base a slight 

 prominence on either side that may be referred to in the expression 

 " postice subinflatus," but I do not regard it as a specific character, 

 for its conspicuousness seems to depend on whether the prothorax 

 is quite in its natural position in respect of the elytra. Tn 

 extremely fresh and bright specimens the squamosity of the elytra 

 renders the sculpture apparently much less pronounced than it is 

 seen to be in more or less abraded ones. The robust incrassation 

 of the middle of the femora seems to distinguish this insect from 

 many of its congeners, and the less prominence of its eyes from 

 others. If R. excavata, Boisd., be really distinct from R. rugosa, 

 Boisd., it becomes a question whether it is not the same thing as 

 R. foveipennis, Pasc, as there seems nothing inconsistent with 

 such a supposition except that in that case Boisduval has in his 

 brief description omitted to mention that the alternate elytral 

 interstices are more elevated than the others, —an important 

 omission, no doubt, but quite Boisduvallian. 



Rhinaria tibialis, sp.nov. 



Picea ; squamis nigris aliisque cinereis (setulis suberectis inter- 

 mixtis) dense vestita ; squamis cinereis in prothorace triline- 

 atim condensatis, in elytris confuse marmoratim dispersis, 

 corporis subtus fere superficiem totam vestientibus ; capite 

 crista bifida (hac squamis pallidis densis vestita) antice instruc- 

 to ; rostro nigro nitido, puncturis elongatis sparsim adsperso, 

 supra a basi longe ultra medium carina longitudinali mediana 

 instrncto, parte antica tertia concava ; prothorace quam ad 



