STAPHYLINID7E. 469 



mainly differs in its head being rather more oval (or less transverse), 

 with the eyes considerably smaller ; in its prothorax, when viewed 

 beneath the microscope, appearing more coarsely punctured ; and in 

 the rufescent parts of its surface being altogether a little obscurer. 



1292. Homalota umbratilis. 



Homalota umbratilis, Wott., Ins. Mad. 554 (1854). 

 , Id., Cat. Mad. Col. 177 (1857). 



Habitat Maderenses (Mad.), in intermediis sylvaticis semel reperta. 



A single specimen of this small Homalota, which was taken by 

 myself in the sylvan region at the Montado dos Pecegueiros in the 

 north of Madeira proper, is all that I have yet seen ; and there- 

 fore, until further material has been obtained, I can scarcely regard 

 its diagnosis as quite satisfactory, though it is certain that the 

 species cannot be referred to any of the others here enumerated. 



1293. Homalota alutaria. 



Homalota alutaria, WolL, Cat. Mad. Col. 177 (1857). 

 Habitat Maderenses (Mad.), in editioribus a Dom. Mason parce lecta. 



Only two examples of this distinct species have as yet come be- 

 neath my notice. They were taken by Mr. Mason in Madeira 

 proper I believe, in the upland region of the Fanal. I think it is 

 far from unlikely that is of Euphorbia-infesting habits, and that 

 the specimens were captured under the bark of the E. mellifera 

 which attains a gigantic size in that particular district. 



1294. Homalota coriaria. 



Homalota sodalia, Wott. [nee Erich., 1837], Ins. Mad. 554 (1854). 

 - coriaria (Miller), Kraatz, Nat. der Ins. Deutsch. ii. 282 (1856). 

 , Wott., Cat. Mad. Col. 177 (1857). 

 , Id,, Cat. Can. Col. 546 (1864). 



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

 Palma), sub quisquiliis atque etiam in Euphorbiis putridis 

 vulgaris. 



The European H. coriaria will most likely be found to be universal 

 in these Atlantic Groups, where it occurs beneath vegetable refuse 

 (and occasionally within the putrid stems of the Euphorbias) at low 

 and intermediate altitudes. It abounds in Madeira proper; and it 

 has been captured in all the Canariau islands except Fuerteventura 



