of the Canary Islands. 343 
subacutis, postice leviter punctato ; elytris minus nitidis, striatis, 
apice acuminatis ; antennis pedibusque lete rufo-ferrugineis. 
Long. corp. lin. 73-73. 
Habitat Teneriffam sylvaticam, in lisdem locis ac preecedens. 
As may be gathered from the above diagnosis, the C. acum- 
natus may be known from the last species by its more piceous or 
rufescent hue; by its prothorax being less conspicuously nar- 
rowed behind, with the sides more elevated and more regularly 
rounded in the middle (instead of Jefore the middle, as in that 
insect), less punctured towards the base, and with its anterior 
angles more porrected and acute ; by its elytra being flatter, and 
more acuminated at their apex; and by its limbs being of a 
uniformly paler tint. It occurs in precisely the same spots as 
the C. sphodroides, being peculiar (so far as I have observed 
hitherto) to the wooded districts of Teneriffe. Although very 
rare, it is not quite so scarce as its ally. I have taken it in the 
forest-region of the Agua Mansa, above Ycod el Alto, and at 
the sides of the Vueltas leading down from the Cumbre to 
Taganana. 
b. Corpus minoris magnitudinis, prothorace postice (ut in Calathis typicis) 
plus minus latiore, punctis elytrorum discalibus plus minus distinctis. 
3. Calathus rufo-castaneus, n. sp. 
C. rufo-castaneus, subdepressus ; capite prothoraceque unitidissimis, 
hoe transverso-subquadrato postice paulo latiore, ad latera sub- 
pellucido late recurvo; elytris minus nitidis, striatis, interstitiis 
depressis, tertio punctulis 3-5 minutis notato ; antennis pedibusque 
testaceis. 
Long. corp. lin. 53-6. 
Habitat in elevatis humidis sylvaticis Teneriffee, rarissimus. 
The pale rufo-eastaneous hue of this distinct and rather large 
Calathus, in conjunction with its highly polished head and pro- 
thorax (the latter of which is a good deal recurved, and some- 
what pellucid, towards the edges), the minute size of the discal 
punctures of its elytra, and its testaceous limbs, will at once 
separate it from the other species here described. Only nine 
examples have hitherto come under my notice, and it may be 
considered, therefore, as decidedly rare. They were all taken in 
the wooded region above the Agua Mansa of Teneriffe ; so that 
the species is probably peculiar to the upper portion of the sylvan 
districts. 
4. Calathus carinatus. 
C. piceus, depressus; capite prothoraceque nitidis, hoc angusto, 
elongato-subquadrato postice vix angustiore, ad latera sat recurvo; 
elytris ellipticis, complanatis, linea basali in utroque valde profunde 
arcuata, valde opacis, striatis, interstitiis valde depreSsis, tertio 
25%* 
