346 Mr. T. V. Wollaston on the Calathi 
ad latera pallidiore et sat recurvo; elytris linea basali in utroque 
arcuata, striatis, interstitiis subdepressis, tertio punctis circa 3-7 
distinctis notato; antennis pedibusqne rufo-testaceis. 
Long. corp. lin. 42-54. 
Habitat sub lapidibus in montibus Teneriffe, usque ad 8000! s. m. 
ascendens. 
The present Calathus (which I have observed only in Tene- 
riffe) is essentially an inhabitant of the loftiest elevations, attain- 
ing its maximum at about 8000 feet above the sea, and but 
rarely descending into the sylvan districts. It may be known 
by its only slightly chining surface, fusco-piceous hue, and 
rather large size; by its prothorax (which is a little rufescent at 
the edges, and not much recurved) being about equally narrowed 
before and behind; and by the discal punctures of its elytra 
being well developed and distinct. I took it in profusion, during 
May of 1859, from beneath stones, on the Cumbre adjoining 
the Caiiadas, above Ycod el Alto, as also on the opposite Cumbre 
above the Agua Mansa. In both instances, however, I observed 
a few stray specimens at a rather lower altitude, namely, almost 
at the Agua Mansa and Ycod el Alto themselves; but as even 
those spots could not be less than some 5000 feet in elevation, 
there can be no doubt that the C. ascendens must be regarded as 
an alpine species. 
8. Calathus rectus, n. sp. 
O. subdepressus ; capite prothoraceque nitidissimis, rufo-piceis, hoe 
subquadrato, postice vix latiore, ad latera pallidiore et paulo re- 
curvo ; elytris piceis, obscurioribus, linea basali.in utroque rectis- 
sima, leviter striatis, interstitiis depressis, tertio punctis plerum- 
que 3 sat distinctis notato ; antennis pedibusque testaceis. 
Long. corp. lin. 4-43. 
Calathus fulvipes?, Brullé [nec Lat.], in Webb et Berth. (Col.) 56 (1838). 
Habitat in locis inferioribus et intermediis Teneriffe, passim. 
In their very shining head and prothorax, and duller (though 
scarcely opake) and lightly striated elytra, as well as in their 
general hue and comparatively smaller size, the present Calathus 
and the following one have much in common. Nevertheless the 
C. rectus is the larger and flatter of the two, and has its limbs 
considerably longer ; its head and prothorax also (the latter of 
which is a trifle more elongate and wider behind, and has its 
edges more evidently recurved) are more rufescent ; and the 
basal line of its elytra (extending from either shoulder to the 
scutellum) is less arcuate, being, in fact, almost perfectly straight. 
Whilst the following species occurs only (so far as I have ob- 
served hitherto) in Lanzarote, the C. rectus is scattered sparingly 
over the lower and intermediate elevations of Teneriffe. I have 
