STAPHYLINID^E. 525 



1446. Megarthrus longicornis. 



Megarthrus longicornis, Wott., Ins. Mad. 615, tab. xiii. f. 9 (1854). 



, Id., Cat. Mad. Col. 206 (1857). 



, Id., Cat. Can. Col. 604 (1864). 



Habitat Maderenses (Mad.) et Canarienses (Lanz., Can., Ten., Gom., 

 ffierro), sub quisquiliis in inferioribus iutermediisque late 

 diffusus. 



A Megarthrus (somewhat allied to the European M. sinuaticoUis) 

 which is widely spread over these Atlantic islands, where I have 

 little doubt that it is nearly universal. In the Madeiras however it 

 has been observed hitherto only throughout the intermediate ele- 

 vations of Madeira proper, where moreover it appears to be scarce. 

 But at the Canaries, where it occurs in the lower districts as well 

 as the higher ones, it is much more common frequently abounding 

 beDeath vegetable refuse. I have taken it in Lanzarote, Grand 

 Canary, Teneriffe, and Hierro, in the last two of which it was 

 met with likewise by Mr. Gray ; and it was found in Teneriffe and 

 Gomera by the Messrs. Crotch. 



1447. Megarthrus sermla. 



Megarthrus serrula, Woll. } Append, huj. op. 76. 



Habitat Canarienses (Gom.), sub quisquiliis a DD. Crotch nuper 

 detectus. 



Captured in Gomera by the Messrs. Crotch, during their late ex- 

 pedition to the Canaries by sifting fallen leaves and other vege- 

 table refuse, above Hermigua. 



Genus 423. METOPSIA. 

 Wollaston, Ins. Mad. 616(1854). 



1448. Metopsia ampliata, 



Metopsia ampliata, WolL, Ins. Mad. 616, tab. xiii. f. 7 (1854). 

 -, Id., Cat. Mad. Col. 206 (1857). 



Habitat Maderenses (Mad.), sub quisquiliis lapidibusque in sylvaticis 

 humidis intermediis, prsesertim lauretis, parce occurrens. 



This flat and remarkable insect seems to be peculiar to the moist 

 sylvan districts of Madeira proper, where it occurs sparingly (beneath 

 stones, pieces of damp rotting wood, fallen leaves, and other vegetable 

 refuse) at intermediate and rather lofty elevations. 



