CANAUrAN COLEOPXEEA. 443 



very much smaller, lighter, and more remote (indeed those on the 

 head and prothorax are but just perceptible even under a lens), and 

 in its frontal keel being rather more e\ddent and somewhat less curved. 



67G. Arthrodes punctatulus, n. sp. 



A. speciebus prajcedentibus affinis, sed ubique distincte, argute et sat 

 dense punctulatus (punctis iu clytris asperatis), carina frontali cur- 

 vata indistincta (sajpe etiam subobsoleta) , prothorace ad latera (pra3- 

 sertim postice) parum grosse marginato et plicfi humerali (ut in 

 speciebus sequentibus) longiuscula. 



Var. /3. Punctunt omnino paulo leviore, prothorace ad latera vix 

 minus distincte marginato, [Jns. Fuerteventura.] — Long. corp. lin. 

 4-5|. 



Habitat Lanzarotam et Fuerteventuram, hand infrequens. 



The present species seems to be universal throughout Lanzarote, 

 where, however, it is by no means abundant — occurring principally, 

 beneath stones, at intermediate elevations. It may easily be recog- 

 nized by its surface being distinctly and sharply punctured tdl over 

 (the punctxires on the elytra being rather obliquely impinged, and 

 having therefore the appearance of granules when viewed in a parti- 

 ciilar direction), by the lateral edges of its prothorax being some- 

 what coarsely margined posteriorly but more hghtly so in front, and 

 by its frontal keel being indistinct and often obsolete. Its epiplcural 

 costa is well defined, and reaches (from the humeral angles) almost 

 halfway to the apex — as in the other species of this Section. It was 

 likewise taken in Lanzarote by Mr. Gray and M. Hartimg. 



I took two examples in Fuerteventura which differ only from the 

 Lanzarotan ones in being altogether a little more lightly punctured, 

 and in having the lateral edges of their prothorax rather less dis- 

 tinctly margined. They retain, however, the essential characters of 

 the species, and I have therefore treated them as the exponents of 

 a slight insular variety. 



677. Arthrodes parcepunctatus, n. sp, 



A. subnitidus, ubique distincte sed parce punctatus (punctis in elj- 

 tris paulo majoribus) ; carina frontali distinctti sed minus curvata ; 

 prothorace ad latera oblique subreeto et ibidem (necnon etiam an- 

 tice, sed minus evidenter) sat gi'osse marginato ; el}i;ris parum mal- 

 leatis, plica humerali postice subabrupte terminate. — Long. corp. lin. 

 .3-3|. 



Habitat Gomeram, a DD. Gray et Crotch lectus. 

 This and the following three species are considerably smaller than 

 the other members of the genus here enumerated ; and of the pre- 



