260 CURCULIONIDjE. 



islands of which I have myself captured it. It occurs beneath 

 stones, and (more especially) amongst small broken sticks around 

 the roots of shrubby plants for the most part at rather low, but 

 sometimes at intermediate, elevations. It is a variable insect, both 

 in tint and sculpture, having a slightly different phasis for each o: 

 the separate islands ; and it appears to be more abundant on the 

 northern Deserta, and in Porto Santo, than elsewhere. 



723. Caulotrupis impius. 



Caulotrupis impius, WolL, Ins. Mad. 311 (1854). 



, Id., Cat, Mad. Col. 103 (1857). 



, Id., Trans. Ent. Soc. Land. v. 376 (1861). 



Habitat Maderenses (Mad., Des., Bugio), intra caules Carduorum 

 praecipue Silybi Mariani, Grtn., latitans. 



Found in Madeira proper and the two southern Desertas, though 

 more especially common on the Deserta Grande. It seems to reside 

 principally (if not indeed entirely) within the dry stems of Thistles, 

 feeding upon the pith ; and I have seen dead stalks of the gigantic 

 Silybwn Marianum (the " Holy Thistle " of the ancients), on the 

 summit of the Deserta Grande, absolutely devoured by it. 



724. Caulotrupis terebrans. 



Caulotrupis terebrans, WolL, Ins. Mad. 312, tab. vi. f. 8 (1854). 



, Id., Cat. Mad. Col. 103 (1857). 



, Id., Trans. Ent. Soc. Land. v. 377 (1861). 



Habitat Maderenses (P to S to ), rarissimus. In summo ipso monte 

 " Pico do Facho" dieto specimina duo collegi. 



The only two examples which I have seen of this Caulotrupis were 

 captured by myself on the extreme summit of the Pico do Facho in 

 Porto Santo, of the Madeiran Group ; and it would therefore seem 

 to be rare. 



725. Caulotrupis Chevrolatii. 



Caulotrupis Chevrolatii, Woll, Ins. Mad. 313 (1854). 



, Id., Cat. Mad. Col 103 (1857). 



, Id., Trans. Ent. Soc. Land. v. 377 (1861). 



Habitat Maderenses (Mad.), in sylvaticis humidis editioribus sub 

 ligno praBsertim recenter secto late sed vix copiose difiusus. 



Peculiar apparently to the damp sylvan districts of Madeira proper, 

 where it occurs beneath logs and chippings of wood, principally at a 

 high elevation. 



