of the Canary Islands. . 347 
taken it near S‘* Cruz and Orotava (at the latter of which it was 
likewise found by Mr. Gray), as also on the mountains above 
Taganana; and it has been communicated by the Barao do Cas- 
tello de Paiva from Las Mercedes. 
I have but little doubt, from its size and superficial aspect, 
that it is the insect referred by M. Brullé to the European C. 
fulvipes, with which, however, it has, in reality, nothing (except 
its generic characters) in common. 
9. Calathus simplicicollis, nu. sp. 
C. piceus, angustulus, subconvexus ; capite prothoraceque nitidissi- 
mis hoc subquadrato, postice vix latiore, ad latera anguste palli- 
diore et vix recurvo ; elytris obscurioribus, linea basali in utroque 
paulo arcuata, leviter striatis, interstitiis depressis, tertio punctis 
plerumque 3 sat distinctis notato; antennis pedibusque brevius- 
culis, testaceis. 
Long. corp. lin. 3-3. 
Habitat Lanzarotam borealem, tempore hiberno et vernali, sat fre- 
quens. 
As may be gathered from what has already been said, the 
present Calathus (which seems to be peculiar to Lanzarote) 
differs from the last one in being a little smaller, narrower, and 
more convex, of a slightly darker hue, and with its limbs consider- 
ably shorter. Its prothorax, also, is somewhat less conical, with 
the sides more narrowly rufescent and Jess recurved ; and the basal 
line of its elytra (joining either shoulder with the scutellum) is 
more arcuate. It is about the size and general outline of the 
common European C. melanocephalus, of which it is just possible 
(though, I think, hardly likely) that it may be but a geogra- 
phical state. It differs, however, from all the specimens and all 
the yarieties of that insect which I have yet seen (including the 
peltatus, Kolen., the ochropterus, Dufts., and the alpinus, Dej., 
for types of which I am indebted to my friend Dr. Schaum) in 
having its prothorax fotally free from the slightest trace of the 
two basal foveze which are always more or less expressed in that 
insect, as also a trifle wider posteriorly, and perfectly unmargined 
behind the hinder angles, which are themselves a little more 
sharply defined (or, more strictly, right angles) ; its head, too, is 
altogether thicker and more developed, with the eyes less promi- 
nent, with the incrassated edge of the clypeus (immediately be- 
hind the insertion of the antennz) more rounded, and with the 
forehead more convex ; and its colour (on which, however, I lay 
but little stress) is different, its head being somewhat redder (or 
less black), whilst its prothorax is not so red (or more infuscated). 
Its elytra also are perhaps a little more shining and less de- 
pressed. The only locality in which I have hitherto taken the 
