CARABIDJE. 61 



Apparently peculiar to Madeira proper, where it occurs (though 

 sparingly) along the edges of the streams at intermediate altitudes. 

 It is the representative of the European B. tibiale, from which never- 

 theless it seems (and such is likewise the opinion of Schaum) to be 

 truly distinct. 



(Subgenus Lopha, Meg.} 



181. Bembidium elongatum. ; 



Bembidium elongatum, Dej., Spec. Gen. des Col. v. 148 (1831). 



, Wott., Ins. Mad. 79 (1854). 



f Id., Cat. Mad. Col. 24 (1857). 



, Schaum, Nat. der Ins. Deutsch. i. 692 (1860). 



Habitat Maderenses (Mad.), per margines aquarum in intermediis 

 editioribusque degens. 



A European species, which occurs (though by no means commonly) 

 along the margins of the streams in Madeira proper at intermediate 

 and lofty elevations. 



182. Bembidium concolor. 



Bembidium concolor, Brulle, in Webb et Berth. (Col.) 58 (1838). 

 -, WolL, Cat. Can. Col 70 '(1864). 



Habitat Canarienses (in Fuert. sola hactenus hand observatum), per 

 margines aquarum necnon ad rupes aquosas hinc inde vulgare. 



Peculiar to the Canarian archipelago, where it is doubtless universal, 

 though hitherto it does not happen to have been observed in Fuer- 

 teventura. But in the remaining six islands of the Group it is more 

 or less abundant, occurring along the edges of the streams and about 

 dripping rocks at intermediate altitudes. 



183. Bembidium subcallosum. 



Bembidium 4-guttatum, Brulle [nee Fab.'], in Webb et Berth. (Col.) 58 

 (1838). 

 - subcallosum, Wott., Cat. Can. Col. 71 (1864). 



Habitat Canarienses (Can., Ten., Gom., Palma, Hierro), in aquosis 

 et humidis vulgatissimum. 



The representative at the Canaries of the European B. callosum, 

 in like manner as the B. Schmidtii represents that insect in the 

 Madeiran Group. From which it follows that the B. callosum, sub- 

 callosum, and Schmidtii may possibly be but geographical modifi- 

 cations of a single species, though it is of course difficult to regard 



