202 MANDIBULATA. — COLEOPTERA. 



This may possibly be a variety of the last-mentioned insect, but as it appears 

 distinct, I have continued it as a species. All the foregoing species of this 

 genus require a more minute investigation than is at present in my power to 

 devote to them, and I have no doubt but that when the subject is earnestly 

 taken up many new species will be shown to exist : — in my own cabinet are 

 three unique insects, neither of which will agree with either of the foregoing 

 definitions : one resembling Rh. Alliariae with a short rostrum, of a bright 

 violet colour (Rh. confinis mihi) ; a second also resembling the same insect, 

 but broader, less pubescent, with a longer rostrum and a very thickly and finely 

 punctured thorax (Rh. longirostris mihi) :— a third very minute one (1 line 

 in length) resembling Rh. minutus, with the elytra transversely rugose (Rh. 

 rugipennis mihi). 



Taken in the neighbourhood of London. 



Sp. 11. sequatus. Obscure osneus ■punctatissimus, fusco pubescens, elytris rubris 

 profunde punctato-striatis, thorace canaliculato. (Long. corp. 1^ — 2^ lin.) 



Cu. aequatus. Linne. — Don. iv. pi. 121. JI 1, 2. — Rh. aequatus. Steph. Catal. 

 190. No. 1976. 



Dull brassy ; thickly punctured and clothed with a fuscous pubescence : head 

 short: thorax oblong, subcylindric, with an obsolete dorsal furrow: elytra 

 ample, deep, rather shining rufous, and coarsely -^xmct&te-striate, with the 

 interstices rather smooth : legs elongate; femora brassy; tibiae pitchy-brown; 

 tarsi dusky-black. 



Variable in colour as well as in size : the elytra being sometimes pale testaceous, 

 and the femora entirely and tibiae above rufous : — the suture of the elytra is 

 occasionally fuscescent. 



Found abundantly on the flowers of the whitethorn and in hedges. 

 " Wood-Ditton."— i?gz;. L. Jenyns. " Cambridge." — C. C. Ba- 

 bi?igton, Esq. " Epping." — Mr. Douhleday. 



f Sp. 12. caeruleocephalus. Violaceus nitens, thorace elytrisque testaceis. (Long 



Corp. 3 lin.) 

 At. caeruleocephalus. Fabricius. — Rh. caeruleocephalus. Steph. Catal. 191. No. 



1977. 

 Head pubescent, violaceous : thorax and elytra also pubescent, shining and 



testaceous, the former cylindric, the latter punctate-striate : body and legs 



violet : rostrum long and slender. 



The only specimen I have hitherto seen of this beautiful species 

 was captured in the vicinity of Windsor. 



Sp. 13. aeneovirens. Supra ceneo-viridis, cinereo-villosus, subtHs ater, elytris 

 punctis excavato-striatis. (Long. corp. 1^ — 2 lin.) 



