CANARIAN COLEOPTERA. 373 



the latter is less uneven (oi- with the inequalities shallower) ; its ely- 

 tra are generally more ovate (or a little rounder behind the middle), 

 jierfectly free from erect pile, and with the interstices less rugulose ; 

 and its antennae and legs are both slenderer and less hairy. 



In addition to the above particulars, the H. calvus seems to be re- 

 stricted to Lanzarote and Fuerteventura, where it takes the place of 

 the eremita which is so universal throughout the remainder of the 

 archipelago. In the latter of those islands it was found also by Mr. 

 Gray, and examples have likewise been communicated from them by 

 the Barao do Castello de Paiva. That it is the species which M. Har- 

 tung registers as the " II. eremita, Oliv." there can be no doubt, for 

 I have received one of his specimens, thus named, from Dr. Heer 

 who compiled the Catalogue. 



569. Herpysticus oculatus, n. sp. 



H. calvo similis, sed paulo minor squamisque albidioribus tectus ; ocu- 

 lis subminoribus, multo magis prominentibus ; prothorace variolis 

 pjofundis parce impresso ; eljtris pilis brevibus albicantibus sub- 

 demissis distinctius obsitis ; antennis (paulo brevioribus ot pices- 

 centioribus) pedibusque vis gracilioribus ac paulo magis pilosis. — 

 Long. Corp. lin. 4-5. 



Habitat in calcariis intermediis Lanzarotae, rarior. 



Although very closely allied to the preceding one, the present Her- 

 pysticus must, I think, be regarded as distinct. It appears to be, on 

 the average, a trifle smaller than the calvus, and altogether whiter or 

 more cinereous ; its eyes are somewhat rounder and very much more 

 prominent ; its prothorax, when deprived of its scales, will be seen 

 to be pitted with large and deep varioles ; its elytra are rather more 

 evidently beset with a short, silvery, subdecumbent pile ; and its 

 limbs are perhaps a trifle slenderer, — the antennae being, also, per- 

 ceptibly shorter and more pieescent, whilst the legs are rather more 

 hairy. Hitherto I have observed it only in calcareous districts of 

 Lanzarote, but it will probably occur in Fuerteventui-a likewise. My 

 specimens were taken, on the 22nd of January 1858, from beneath 

 stones, on the arid hills between Haria and San Miguel de Teguise ; 

 and I have a single Lanzarotan example which was captured by M. 

 Hartung. , 



Genus 217. THYLACITES. 

 Germar, Ins. Spec. i. 410 (1824). 



The only member of this genus which I have detected hitherto at 

 the Canaries belongs to a small and rounded type which has much 

 the appearance, ^5run(f /ftCi'e, of a Cneorhinus ; and which further re- 



