348 Mr. T. V. Wollaston on the Calathi 
C. simplicicollis is the extreme north of Lanzarote, where it is 
not uncommon in the rocky ground behind the Salinas and 
about the Risco. 
§ II. Tibie posteriores maris intus plus minus dense fimbriate. 
10. Calathus ciliatus, n. sp. 
C. fusco-piceus, depressus ; capite prothoraceque subnitidis, hoc in- 
eequali, subquadrato, postice latiore, ad latera paulo pallidiore late 
et valde recurvo ; elytris sub-oblongis, linea basali in utroque paulo 
arcuata, striatis, interstitio tertio punctis circa 8-10 et quinto 
circa 4—6 distinctis notatis; antennis pedibusque elongatis, rufo- 
testaceis. 
Mas elytris subopacis, interstitiis subconvexis; tibiis posterioribus 
intus densissime fimbriatis. 
Fem. elytris opacis, interstitiis valde depressis ; tibiis simplicibus. 
Long. corp. lin. 7-8. 
Habitat in montibus excelsis plus minus sylvaticis Teneriffe, hine 
inde sed rarus. 
The large size of the present Calathus* and the following one 
will easily separate them from the other species of my second 
section. Inter se they are at first sight a good deal allied; and 
before examining them closely, I had imagined that they were 
but phases of one insect. A more accurate inspection, however, 
of the sexes of both has convinced me that they are probably 
distinct, since they preserve their characters, apparently, without 
variation. The C. ciliatus is somewhat the more bulky of the 
two, being always broader than its ally, and on the average a 
little longer. It may, however, be additionally known by its 
prothorax being more especially wider and less conical; by the 
basal line of its elytra being much less deeply arcuate, causing 
the shoulders to be less porrected ; by the punctures of its third 
and fifth interstices being usually less numerous; by its elytra 
(which are a trifle brighter and with their intervals less flattened 
in the male sex) being more oblong; and by the four hinder tibize 
in the male being fimbriated along a rather greater portion of their 
inner edge. It appears to occur principally in the upper part of 
the sylvan regions of Teneriffe ; and, indeed, I have not yet ob- 
served it below an altitude of about 5000 feet. On the damp 
ledges and rocks above the Agua Mansa, to within a short di- 
stance of the Cumbre, I took it sparingly during May of 1859. 
* In the national collection at Paris I observed, a few months ago, spe- 
cimens of this insect under the name of C. complanatus, De}. That species, 
however, is confined to Madeira, and is totally distinct from the present 
one, which has more in common primd facie with the Madeiran C. vividus, 
Fab. In real fact, however, both of the Madeiran species belong to a dif- 
ferent type from these two Canarian ones,—having the hinder tibie of 
their males simple. 
