114 CANARTAN COLEOPTERA, 



Grand Canary, in TenerifFe (namely at Taganana, on the mountains 

 above S*'' Cruz, at Las Mercedes, the Agua Garcia, &c.), in Pahna 

 (namely in the eastern ravines, at the Banda, &c,), and in Hierro ; 

 and it was captured by Mr. Gray near San Sebastian of Gomera. It 

 was also met with by Dr. Crotch in TenerifFe, Gomera, and Palma. 

 It varies a little in the colour of its pubescence, which is either of a 

 cinereous white or with a more or less yellowish tinge.— being occa- 

 sionally of an almost golden hue. It is entered in M. Hartung's list 

 of Fuerteventuran Coleoptera ; and although there is no reason why 

 it should not exist in that island, yet considering the many errors 

 which I have already alluded to as having been most undoubtedly 

 committed in M. Hartung's liah'itats, and since I am determined to 

 quote no localities in this Catalogue except those concerning which 

 I have the most positive evidence, I think it safer not to record the 

 sjiecies as a Fuerteventuran one — more particularly as it appears 

 probable, from my own observations, that the insect does not occur 

 in the two eastern islands of the archipelago. 



Genus 79. XENOSTRONGYLUS. 

 Wollaston, Ins. Mad. 127. tab. ii. f. 8 (1854). 



190. Xenostrongylus histrio. 



Xeuostrongylus histrio et canarieusis, Woll.,Ins.Mad. 127,128. tab. ii. 

 f. 8 (1854). 



, Id., Cat. Mad. Col. 41 (1857). 



ai'cuatus, Kiesw., Berl. Zeit. 57 (1859). 



Habitat insulas omnes Canarienses, prsesertim in locis sylvaticis, 

 vulgaris. 



The X. histrio, which is universal in the Madeiran Group (being 

 found in Madeira proper, Porto Santo, and on the Desertas), and 

 which has also been detected (since the publication of my ' Insecta 

 Maderensia') in Sicily and the south of Spain, is equally universal 

 at the Canaries, — in the ivhoJe seven islands of which I have myseK 

 taken it, more or less abundantly. In Lanzarote, Palma, and Hierro 

 it was found likewise by Mr. Gray, and in TenerifFe and Gomera by 

 Dr. Crotch. It is more common, however, within the sylvan regions 

 of the central and western portions of the archipelago than elsewhere, 

 in certain parts of which it absolutely teems. Thus, at the Agua 

 Garcia of TenerifFe and in the district of El Golfo on the western 

 side of Hierro I have brushed it in immense numbers from out of 

 the rank fern and vegetation in shady spots. 



It is excessively variable in the colour of its scales, and in the 



