268 CAN ARIA N COLEOPTERA. 



from, which was extracted, dead and mutilated, from out of an old 

 laurel, the decayed portions of which were completely perforated with 

 its burrows, in the wooded district of El Golfo, on the western side 

 of Hierro. Although it has merely the scape of one of its antenna? 

 remaining, I have little doubt nevertheless, from its convex, ovate 

 body and general aspect, as well as from the peculiarity of its sculp- 

 ture (the extreme base of its elytra, and cither side of its subcorneal 

 prothorax, being coarsely asperate, or mucronated), that it is a true 

 Hylesinus ; and I have therefore treated it accordingly. And if such 

 should be the case (of which I feel pretty confident), it is of the 

 greatest importance that its imperfect condition shoidd not prevent 

 me from admitting it into the present Catalogue, it being the only 

 veritable Hyles'mus which has liitherto been detected in awj of these 

 Atlantic islands. Moreover, from the extent to which its devastating 

 powers were traceable in the old tree from whence my example was 

 taken, there is reason to believe that it must play a significant part 

 amongst the Xylophagous Coleoptera of (at any rate a portion of) the 

 Canarian Group ; but as our sojoiu-n in Hierro Avas both brief and 

 during the month of February (when the insects of this Family are 

 necessarily difficult to procure), I was unable to obtain specimens in 

 a more satisfactory state. 



Genus 179. HYLURGUS. 

 Latreille, Gen. Cncst. et Ins. ii. 274 (1807). 



432. Hylurgiis ligniperda. 



Bostrichus ligniperda, Fah., Ent. St/d. i. ii. 367 (1792). 

 Hyliu'gus ligniperda, Erich., Wiegm. Archiv, ii. 52 (183G). 



, Woll., Ins. Mcifl. 302 (1854). 



, Id., Cat. Mad. Col. 99 (1857). 



Habitat in pinetis Teneriffae et Palm®, truncos Pini canariensis 

 destruens. 



The H. ligniperda, which occurs throughout the whole of Europe, 

 and which has become naturalized in the fir-woods of Madeira, al- 

 though extremely local is far from uncommon in certain situations at 

 the Canaries. Hitherto I have observed it only in Teneriffe and 

 Palma ; but it will probably be found wherever the remains of the 

 old Finals still exist, — that is to say, in all the islands except Lan- 

 zarote and Fuerteventura. I have taken it from beneath the rotten 

 bark of the Finns canariensis at the Agua Mansa, and in the Pinal 

 above Ycod el Alto, in Teneriff'e ; as also, in similar situations, in the 

 Barranco above S'"" Cruz of Palma. 



