252 CANARIAN COLEOPTERA. 



modified. Thus, they have their entire surface more shining and 

 quite glabrous (whereas that of the eylindripennis is very minutely, 

 but densely, pubescent) ; their prothorax is larger, relatively wider 

 anteriorly, more obtusely rounded (or less acuminate) in front, and 

 delicately jjiino<w?«ief? (instead of granxilose) behind ; and their elytra 

 are rather more decidedly (though most minutely) punctulated, and 

 apparently without even the faintest tendency to be longitudinally 

 subcostatc. 



Hitherto I have observed the P. leindus only in the intermediate 

 elevations of Teneriffe and Palma, — namely at Taganana of the for- 

 mer, and (more abundantly) in an old paling at Galga, of the latter. 



Fam. 41. BOSTRICHID^. 



Genus 168. XYLOPERTHA*. 

 Gu^rin, Ann. cle la Sac. Ent, de France, Bull. 17 (1845). 



407. Xylopertha barbifrons, n. sp. 



X. cylindrica, fusco-picea, subnitida, pube flavescente sericea demissa 

 grosse irrorata ; capitis limbo longissime barbate ; prothorace an- 

 ticc mucronibus maximis asperate et ibidem jDilis tenmbus longis- 

 simis ercctis obsito, postice parce granulate ; elytris basin versus 

 paulo pallidioribus, subseriatim punctatis (punctis postice magnis, 

 antice paulatim minutissimis), ad apicem retusis, parte truncata 

 utrinque nodulo parvo instructa necnon per suturam elevata ; an- 

 tennis pedibusque tcstaceis, illarum clava tibiisque subinfuscatis. 

 — Long. corp. Hn. 1^. 



Hahitat Palmam ; mense Maio a.d. 1858 exemplar unicum hand 

 procul a Galga dcprehendi. 



The present insect differs, inter cilia, from the Madeiran X. har- 

 bata in being more densely clothed with a coarser decumbent sericeous 

 pile ; in the hinder region of its prothorax being much less polished, 

 and distinctly f/ratiulose (instead of most minutely punctulated) ; in 

 the paler ])arts of its sm-face being darker, or more infuscated ; in its 

 forehead being still more densely penicillatcd ; and in its suture being 

 more uniformly raised along the whole of the truncated portion at 

 the apex of its elytra. The single specimen from which the above 



* It appears that the Xt/lojperthcs (at any rate the European ones) have but 

 nine distinct joints to their antenna\ and not ten as has been usually supposed. 

 Consequently M. Mulsant's genus Enneadesmuti, which was based solely on the 

 former iliar;ictcr, has to be suppressed ; and the Madeiran insect which I described 

 in 18G0 {vide Ann. of Nat. Hist.. 3rd series, v. 359), under the name of Ennca- 

 desMus harbatus, must be regarded, therefore, as a Xylopertha. 



