102 



in more than about half of them. At the Madeiran Group it has 

 been taken in Madeira proper and the Deserta Grande, and at the 

 Canaries in Fuerteventura, Grand Canary, Teneriffe, and Gomera. 

 It occurs beneath vegetable refuse, often in profusion, and principally 

 at intermediate altitudes. 



285. Ptenidium punctatum. 



Scaphidium punctatum, Gull., Ins. Suec. iv. 293 (1827). 

 Trichopteryx alutacea, Gil'lm., in Sturm, D. F. xvii. 84 (1845). 

 Ptenidium punctatum, Fairm. et Lab., Faun. Frang. i. 341 (1854). 

 } Woll, Cat. Can. Col, 105 (1864). 



Habitat Canarienses (Lanz.), per oras arenosas maritimas sub fucis 

 parce degens. 



The only locality in these islands in which I have observed the 

 European P. punctatum is (beneath marine rejectamenta) along the 

 sandy shores of Lanzarote ; so that its habits at the Canaries are 

 precisely similar to those which obtain in higher latitudes. Doubt- 

 less, however, it will be found to be more general if searched for in 

 the proper situations. 



Genus 90. PTINELLA. 

 (Motschulsky) Matth. in Zool. xvi. 6106 (1858). 



/ 

 286. Ptinella aptera. 



Ptilium apterum, Guer., in Rev. Zool. 90 (1839). 

 Trichopteryx aptera, Gillm., in Sturm, D. F. xvii. 63 (1845). 

 Ptilium apterum, Fairm. etLab., Faun. Frang. i. 339 (1854). 



Habitat Canarienses (Hierro), sub cortice Pini canariensis in pineto 

 quodam antique excelso a DD. Crotch parcissime lecta. 



Two examples of this minute Ptinella, which in the opinion of 

 Mr. Matthews does not differ from the European P. aptera, were 

 captured by the Messrs. Crotch at a high elevation in Hierro the 

 most western island of the Canarian Group. Considering the remote- 

 ness of its habitat, it is a most important addition to our Atlantic 

 fauna ; and it is interesting to observe that its mode of life appears 

 to be much the same as in more northern countries ; for the Hierro 

 specimens were taken from beneath the bark of some old pine trees 

 (in this instance, however, the Pinus canariensis) constituting the 

 remains of the ancient Pinal which once clothed the southern extre- 

 mity of the lofty Cumbre, or central ridge, of that island. We may 

 expect it, therefore, to occur in the Pinals generally. 



