STAPHYLINID^E. 457 



Chilopora longitarsis, Kraatz, Nat. der Ins. Deutsch. ii. 147 (1856). 

 , Wall, Cat. Mad. Col. 171 (1857). 



Habitat Maderenses (Mad.}, ad margines rivulorum inter lapillos 

 humidos sese occultans. 



The common European /. longitarsis occurs sparingly by the edges 

 of the streams in Madeira proper, particularly at intermediate alti- 

 tudes ; but it has not yet been observed in any of the other islands. 



Genus 383. XENOMMA. 

 Wollaston, Ins. Mad. 543 (1854). 



1255. Xenomma planifrons. 



Xenomma planifrons, Wott., Ins. Mad. 544, tab. xiii. f. 4 (1854). 

 , Id., Cat. Mad. Col. 172 (1857). 



Habitat Maderenses (Mad.), sub lapidibus aquosis foliisque marcidis 

 in locis editioribus rarissimum. 



Found at a lofty elevation in Madeira proper, where it occurs 

 (though very rarely) under wet stones and damp sodden leaves for 

 the most part near the edges of the small trickling streams, towards 

 the upper limits of the sylvan districts. 



1256. Xenomma fonnicarum. 



Xenomma formicarum, WolL, Ins. Mad. 545 (1854). 

 , Id., Cat. Mad. Col. 172 (1857). 



Habitat Maderenses (Mad.), rarissimum ; fere in locis similibus ac 

 praecedens. 



Likewise peculiar (so far as has been observed hitherto) to Madeira 

 proper, where it is ,found in much the same kind of places as the last 

 species though descending rather more into the intermediate dis- 

 tricts, and occurring for the most part in somewhat drier (or less 

 watery) spots. 



1257. Xenomma filiforme. 



Xenomma filiforme, WolL, Ins. Mad. 545 (1854). 

 , Id., Cat. Mad. Col. 172 (1857). 



Habitat Maderenses (Mad., P to S to ), hinc inde sub lapidibus in in- 

 termediis. 



A minute and narrow little insect, which occurs sparingly at 

 intermediate altitudes in the Madeiran Group. I have taken it 



