STAPHYLINIDjE. 511 



its prothorax is altogether smaller, and less expanded anteriorly; 



and its elytra are less straightened at the sides, and less depressed. 



\ 



Genus 413. MECOGNATHUS. 

 WoUaston, Ins. Mad. 595 (1854). 



1410. Mecognathus chimaera. 



Mecognathus Chimaera, Woll, Ins. Mad. 595, tab. xiii. f. 8 (1854). 

 , Id., Cat. Mad. Col. 196 (1857). 



Habitat Maderenses (Mad.), in sylvaticis humidis editioribus, prae- 

 sertim lauretis, sub lapidibus lignoque putrido sese occultans. 



Peculiar apparently to the sylvan districts of Madeira proper, where 

 it occurs beneath stones and pieces of rotting wood at intermediate 

 and lofty elevations. Like the allied Sunii it runs with amazing 

 velocity, and is more particularly attached to moist spots in the 

 thickest parts of the forest. 



(Subfam. VII. STENIDES.) 



Genus 414. STENUS. 

 Latreille, Precis des Car act. 77 (1796). 



I. Abdomen marginatum. 



a. Tarsi articulo quarto simplici. 



1411. Stenus guttula. 



Stenus guttula, Mull, in Germ. Mag. iv. 225 (1821). 



, Woll., Ins. Mad. 597 (1854). 



, Id., Cat. Mad. Col. 196 (1857). 



, Id., Cat. Can. Col 592 (1864). 



Habitat Maderenses (Mad., P to S to ) et Canarienses (Can.,Ten.,Palmd), 

 ad margines aquarum plerumque in intermediis. 



The European S. guttula is common in the Madeiran Group, where 

 it occurs along the edges of the streams (and in wet places generally) 

 at rather low and intermediate altitudes. It has been taken in Ma- 

 deira proper and Porto Santo, but is much more abundant in the 

 former than in the latter. In the Canaries, on the other hand, it 

 seems decidedly to be scarce the few specimens which I have yet 

 seen having been captured by myself in the intermediate districts of 

 Grand Canary, Teneriffe (where I believe that it was found likewise 

 by the Messrs. Crotch), and Palma. I met with it also at Mogadore, 

 011 the opposite coast of Africa. 



