60 



CARABID.E. 



Observed hitherto only in Lanzarote and Fuerteventura, the two 

 eastern islands of the Canarian Group where it occurs, sparingly, 

 along the edges of the streams at intermediate elevations. It is a 

 species of Mediterranean latitudes ; and the Canarian examples seem 

 to differ a little from the few which I have had an opportunity of 

 inspecting from more northern countries. 



(Subgenus Ocys, Steph.) 



178. Bembidium dubium. 

 Bembidium dubium, WolL, Cat. Mad. Col. 23 (1857). 

 Habitat Maderenses (Mad.), rarissimum; semel tantum deprehensum. 



Detected by Mr. M. Park in the south of Madeira proper, and 

 apparently of the greatest rarity. It is closely related to the Euro- 

 pean B. rufescens, of which indeed it is possible that it may be but 

 a geographical state. 



(Subgenus Peryphus, Meg.) 



179. Bembidium atlanticum. 



Bembidium decorum, Brulle\necDej.~],in WebbetJBerth. (CW.)58(1838). 



atlanticum, WolL, Ins. Mad. 77 (1854). 



, Id., Cat. Mad. Col. 23 (1857). 



, Id., Cat. Can. Col. 70 (1864). 



Habitat Maderenses (Mad., P tQ S to ) et Canarienses (in Hierro sola 

 adhuc haud observatum), ad margines aquarum vulgare. 



The universal Bembidium throughout these Atlantic islands, oc- 

 curring at the edges of the streams and pools at nearly all elevations. 

 At the Madeiran Group, it abounds in Madeira proper and Porto 

 Santo ; whilst at the Canaries, Hierro is the only island of the seven 

 in which it does not happen to have been observed (though there 

 can be little doubt that it must exist there likewise). It is a most 

 unstable insect as regards colour, varying from a dark and almost 

 spotless green to a pale, maculated state ; and it is the latter which 

 is especially characteristic of the more arid (or eastern) islands of 

 the archipelago, both in the Madeiras and Canaries. 



180. Bembidium tabellatum. 



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

 1 Id. } Cat. Mad. Col. 23 (1857). 



Habitat Maderenses (Mad.), per margines rivulorum in locis inter- 

 mediis parce occurrens. 



