36 CANARIAN COLEOPTERA, 



gles) ; its head, too, is altogether thicTcer and more developed, with 

 the eyes less prominent, with the incrassated edge of the clypeus 

 (immediately behind the insertion of the antennae) more rounded, 

 and wdth the forehead more convex ; and its colour (on which, how- 

 ever, T lay but little stress) is different, its head being somewhat 

 redder (or less black), whilst its prothorax is not so red (or more in- 

 fuscated). Its elytra, also, are perhaps a little more shining and less 

 depressed. The only locality in which I have taken, hitherto, the 

 C. simplkicoUis is the extreme north of Lanzarote, where it is not 

 ixncommon in the rocky ground between the Salinas and the Risco. 



§ II. Tibice postenores maris intiis plus minus dense fimhriatce. 



59. Calathus ciliatus. 



Calathus ciliatus, Woll, loc. cit. 348 (18G2). 



Habitat in montibus excelsis plus minus sylvaticis Teneriffse, hinc 

 inde sed parum 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 ex- 

 amining them closely, I had imagined 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. The C ciliatus is 

 somewhat the more bulky of the two, being alw^ays broader than its 

 ally, and on the average a little longer. And it may, additionally, 

 be 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 

 (w^hich are a trifle brighter and with their intervals less flattened in 

 the male sex) being more oblong ; and by the four hinder tibiae 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 observed it 

 below an altitude of about 5000 feet. On the damp ledges and rocks 

 above the Agua Mansa, to within a short distance of the Cumbre, I 

 obtained it sparingly during May 1859. 



* In the National Collection at Paris I observed specimens of this insect under 

 the name of "C complanatus, Dej." That species, however, is confined to Ma- 

 deira, and is totally distinct from the present one, which has more in common 

 prima facie with the Madeiran 0. vividus, Fab. In real t\iet. however, hofh of 

 the Madeiran species belong to a different type from these two Canarian ones,— 

 Imving the hinder tibia- of their males simple. 



