Atlantic Coleoptera. 221 
asperatis, pedibus (ciliisque in posterioribus) piceSten- 
tioribus. A S. coriaceo (Huropeeo et Canariensi) differt 
corpore minus obtuse oblongo (7. e., antice angustiore) 
omnino minus nigro, capite distinctius maculato et pro 
thorace ad latera ferrugineo, necnon etiam in elytris 
obscure pallido-irroratis, prothorace paulo minus trans- 
verso, postice minus sinuato (angulis basalibus rectioribus), 
scutello sensim minus triangulari, et elytrorum impres- 
sionibus (in seriebus tribus dispositis) magis rotundatis 
punctiformibus. 
The single individual (a female) from which the above 
diagnosis has been drawn out was sent to me from 
Madeira, about two years ago, by the Baron Paiva; and 
it has since been placed aside, hoping that further material 
might perhaps enable me to speak with greater precision 
on the specific feature of the other sex, no less than on 
those of the present one. As no further examples how- 
ever have been brought to light, and the distinctions of 
the solitary one now before me are too important to be 
ignored, I feel compelled to notice it in this memoir, and 
have proposed therefore the title of ¢mbricatus for the 
species which it must be presumed to represent. 
Judging, consequently, from the only type to which I 
have access, the S. imbricatus, while differing widely 
from them both, appears to be in many respects exactly 
intermediate between the S. coriaceus (of southern 
Europe and the Canaries) and the Madeiran S. lanio. 
From both of them it recedes (though especially from 
the former) in its less oblong, or obtuse, outline,—it 
being perceptibly narrower in front, and therefore alto- 
gether more elongate-ovute; whilst from the lanio it 
further differs in its elytra bemg not only much darker 
in hue, but also less shining, and scupltured after the sin- 
gular fashion which obtams in the S. coriaceus, being 
closely roughened with coarse transverse imbrications. 
Its legs likewise are more piceous, with the long hairs 
which fringe the four hinder ones much darker, or less 
fulvescent. 
Although agreeing in its sculpture with the S. coria- 
ceus, the present Scutopterus (apart from its outline being 
more narrowed anteriorly) differs from that species in its 
colour being altogether less black, in its head being more 
brightly maculated, in its prothorax (instead of conco- 
lorous) being ferruginous at the sides (as in the S. lanio), 
