Atlantic Coleoptera. 313 
nigro) prothoraceque (omnino, sed presertim in limbo, 
dilutiore) rugose punctatis; elytris ineequaliter piceo-tes- 
taceis, rugose punctatis (punctis obsolete longitudinaliter, 
quasi in strigis irregularibus, dispositis) ; abdomine 
multo subtilius punctulato, sed grossius pubescente ; 
antennis (brevibus) pedibusque testaceis. 
Long. corp. lin. circa 14. 
Variat colore plus minus obscuriore, corpore interdum 
omnino piceo-nigro. 
Staphylinus concinnus, Mshm., Ent. Brit. 510 (1802). 
Omalium concinnum, Erich., Gen. et Spec. Staph. 886 
(1839); Kraatz, Nat. der Ins. Deutsch. 11. 991 (1858). 
Hab.—Maderenses (Mad.); in granariis ad 8. Antonio 
da Serra parce lectum. 
A few examples of this European Homaliwm were taken 
by my wife in a granary at S. Antonio da Serra, during 
our sojourn at Madeira in the spring of 1870, as also by 
sifting rubbish in an old outhouse adjoining it. I have 
little doubt therefore that the species (which was found 
in company with various Oryptophagi, Latridii, and other 
insects of like habits) has been introduced into the island 
from more northern latitudes. And this seems the more 
probable, since I have captured the H. concinnum under 
somewhat similar circumstances (namely amongst the 
refuse around the base of hay and corn-stacks) in En- 
gland. It is very closely allied to the (equally European) 
HI. deplanatum, but is, inter alia, a little brighter (being 
less appreciably pubescent) and more coarsely punctured, 
with its antenne and elytra a trifle shorter,—the punc- 
tures of the latter having a tendency, moreover, to arrange 
themselves in irregular longitudinal strigze. 
p. 524 (genus Mecarrurvs). 
(Sp. 1446) Megarthrus longicornis. 
Although so universal throughout the Canarian Group, 
I had until lately considered this Megarthrus as some- 
what scarce at Madeira. But during our late sojourn in 
that island we met with it abundantly at “the Mount” 
(from about 1700 to 1900 feet above Funchal), by sifting 
fallen leaves and rubbish, and likewise, though in less 
profusion, at S. Antonio da Serra. It would perhaps 
