CARABID.E. 55 



districts, occurring sparingly, beneath stones, in open grassy spots 

 towards the summits of the peaks. In such situations I have met 

 with it between the Ice House Peak and the Pico do Areeiro, as 

 well as on the Boca das Torrinhas. It may possibly be an aberrant 

 form of the T. custos peculiar to the highest altitudes ; but I have 

 stated elsewhere that I do not believe such to be the case. 



163. Trechus cautus. 



Trechus cautus, WolL, Ins. Mad. 70 (1854). 

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



Habitat Maderenses (P* S to ), in gramineis editioribus apertis sub 

 lapidibus parce degens. 



Apparently peculiar to Porto Santo, of the Madeiran Group, where 

 moreover it is extremely local, occurring, beneath stones, on the 

 open grassy slopes of a high elevation. 



164. Trechus minyops. 

 Trechus minyops, WoU., Ann. Nat. Hist. x. 287 (1862). 



Habitat Maderenses (Mad.), rarissimus a Dom. Moniz in montibus 

 captus. 



Only two specimens of this curious little Trechus (so remarkable 

 for its minute eyes, the almost aciculated last joint of its maxillary 

 palpi, and the rather short and moniliform subapical articulations 

 of its somewhat abbreviated antennae) have as yet come beneath my 

 notice. They were both of them captured by Senhor Moniz at S. 

 Antonio da Serra, in Madeira proper. 



Genus 43. THALASSOPHILUS. 

 Wollaston, Ins. Mad. 71 (1854). 



165. Thalassophilus Whitii. 



Trechus littoralis? Bridle [necDcj.~],in Webb et Berth. (Col.) 58 (1838). 

 Thalassophilus Whitei, Woll., Ins. Mad. 71, tab. ii. f. 5 (1854). 



- Id., Cat. Mad. Col. 21 (1857). 

 Whifeei, /<*., Cat. Can. Col. 64 (1864). 



Habitat Maderenses (Mad., P* S fo ) et Canarienses (Can., Ten., Gom., 

 Palma), inter lapillos per margines rivulorum, passim. 



Widely diffused over these Atlantic islands, where it may be re- 

 garded as the representative of the European T. longicornis. It is 

 found beneath wet stones and shingle at the edges of the small 

 streams, as well as about the dripping rocks, at low and intermediate 



