62 CANARIAN COLEOPTERA. 



subcrenato-striatis, sntiira distinetc necnon limbo ipsissimo ob- 

 scurius ang'ustiusqiio nifescentioribus ; antenuis fiisco-testaceis, 

 ad basin, palpis pedibusque pallido-testaceis, tibiis ad apiccrn tar- 

 sisque ad basin obscurioribus. — Long. corp. lin. l^lv> 



Habitat Tenerifiam sylvaticam, sub foliis dejectis in humidis degens. 



The present beautiful and truly indigenous BradijceTlus is closely 

 allied to the Madeiran B. excidtus, but is more ovate than that species 

 (its elj'tra particularly being more rounded, convex, and ventricose) ; 

 its eyes are larger ; its prothorax is wider in front, narrower behind, 

 and very much more deeply punctiired on either side at the base ; 

 and its elytra are obtuser at their shoulders, and with their strife 

 evidently crenulated. I have observed it only in the sylvan districts 

 of Teneriffe, — having taken it sparingly, beneath stones and dead 

 leaves, in the woods above Taganana, at Las Mercedes, the Agua 

 Garcia, and at La Esperanza. 



(Subfam. XIII. TRECHIDES.) 



Genus 34. TRECHUS. 



Clairville, Ent. HeJv. ii. 23 (1806). 



95. Trechus detersus, n. sp. 



T. capite prothoraceque nitidissimis, nigro-piceis (hoc ad latera et 

 postice intcrdimi paulo rufescentiore), hoc subquadrato, angulis 

 posticis subrectis (ipsissimis acute prominulis) ; elytris ovalibus, 

 rufo-ferrugineis, in disco plus minus paulo obscurioribus, leviter 

 striatis, striis versus latera obsoletis ; antennis infuscato-testaeeis, 

 ad basin, palpis pedibusque testaceis.— Long. corp. lin. l^-vix2. 



Habitat in Lanzarota et Fuerteventura, sub lapidibus, passim. 



This Treclms (which appears to be confined to Lanzarote and 

 Fuerteventura) is very nearly related to the common European T. 

 minutus ; of which, however, it certainly cannot be regarded as a 

 geographical modification. Apart from its rather larger size, it may 

 bo known from that species by its darker head and prothorax, the 

 latter of which is altogether more developed and very much squarer 

 (being about as broad behind as before, and with its posterior angles 

 nearly right angles), and has no impressions at the base ; and by its 

 shoulders being a trifle more porrected and acute. It occurs more 

 particularly in Lanzarote, where it was taken both by Mr. Gray and 

 myself; but during the spring of 1859 I captui-ed it also in Fuerte- 

 ventura. 



