250 



HYLESINID^:. 



northern latitudes, it appears to be attached to the dead wood of the 

 common Broom ( Genista scoparia) ; and it is possible, therefore, that 

 it may originally have been naturalized in the island. I have taken 

 it at the Lombarda das Vacas (on the mountains above Sao Yicente), 

 and it was captured by the late Mr. Bewicke at S. Antonio da Serra. 



Genus 221. HYLURGUS. 

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



699. Hylurgus ligniperda. 



Bostrichus ligniperda, Fab., Ent. Syst. i. ii. 367 (1792). 

 Hylurgus ligniperda, Woll, Ins. Mad. 302 (1854). 



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



, Id., Cat. Can. Col. 268 (1864). 



Habitat Maderenses {Mad., Des.) et Canarienses(Tbi., Palma, Hierro), 

 in pinetis degens. 



The European H. ligniperda will probably be found to occur in 

 most of the fir- woods of these Atlantic islands. At the Madeiras 

 I have taken it in Madeira proper, as well as in a small and recent 

 plantation of fir-trees on the summit of the Deserta Grande ; and at 

 the Canaries, in the Finals of Teneriife and Palma. In the latter 

 Group, it was found also by the Messrs. Crotch in the remote and 

 elevated Final at the southern extremity of Hierro. 



700. Hylurgus destruens. 



Hylurgus piniperda, Woll. [nee Linn.'], Ins. Mad. 303 (1854). 



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



destruens, Id., Append, huj. op. 45. 



Habitat Maderenses (Mad.), sub cortice Pini in subinferioribus parce 

 captus. 



Taken sparingly in Madeira proper, chiefly (I believe) at rather 

 low elevations and beneath the bark of pine trees. I have hitherto 

 referred it to the common European H.piniperda ; but the numerous 

 points in which I now perceive that it diifers permanently from that 

 insect will be gathered by a reference to my diagnosis given in the 

 Appendix. Still, although with a certain number of decided features 

 of its own, it is difficult to feel quite sure that it is in reality more 

 than a fixed geographical modification of its more northern ally. 



Genus 222. HYLASTES. 

 Erichson, in Wiegm. Archiv, ii. 47 (1836). 



