MADEIRAN COLEOPTERA. 23 
(Subgenus Ocys, Kby.) 
67. Bembidium dubium, n. sp. 
B. lurido-ferrugineum, prothorace transverso-quadrato angulis pos- 
ticis acutis, ad latera valde marginato, elytris plus minus sub- 
iridescenti-nigrescentibus sed in disco antico dilutioribus, leviter 
punctato-striatis, singulo pone medium puncto impresso, antennis 
ferrugineis, pedibus testaceis. 
Long. corp. lin. 22. 
B. elongate-ovate, shining, and reddish- or lurid-ferruginous. Pro- 
thorax transverse-quadrate, the sides broadly margined, and the 
posterior angles exceedingly acute ; with a dorsal channel, and an 
impression on either side at the base. Z/ytra more or less black 
(and with an iridescent tinge), the region about the scutellum and 
fore-disk being paler; not much rounded at the sides; rather 
finely punctate-striated, the outer striz being evanescent ; and 
with a large impressed point on the third interstice of each, 
behind the middle. Antenne robust, and ferruginous. Legs pale- 
testaceous. 
The specimen from which the above description has been com- 
piled was detected in the south of Madeira proper by Mr. M. Park, 
and has been lately communicated to me (and presented to the 
British Museum) by Mr. Bewicke. It is very nearly related to the 
B. rufescens of more northern latitudes, of which it may possibly be 
a mere geographical state; nevertheless (judging from the single 
example now before me) it is rather larger and less ovate than that 
species, its posterior prothoracic angles are perhaps not quite so 
prominent, the coloration of its elytra (unless my specimen be imma- 
ture) is different, its legs are just perceptibly longer, and its antennse 
are more robust,—the terminal joint, especially, being shorter and less 
slender than in those of its European ally. 
(Subgenus Peryphus, Meg.) 
68. Bembidium Atlanticum. 
Bembidium Atlanticum, Woll., Ins. Mad. 77 (1854). 
Inhabits Madeira and Porto Santo, occurring amongst shingle at 
the edges of the streams,—the specimens from the latter island being 
very much paler, on the average, than those from the former. 
69. Bembidium tabellatum. 
Bembidium tabellatum, Woll., Ins. Mad. 79 (1854). 
Inhabits Madcira proper, occurring in company with the B. Atlan- 
