CANADIAN COLKOPTERA. 351 



544. Laparocerus obtriangularis, n. sp, 

 L. niger, vix subaenescens, subnitidus, parce metallico-squamoso-tes- 

 sellatus pilisque longiusculis suberectis robustis nigrescentibus in 

 elytris parce obsitus ; rostro angustulo, longiusculo, oculis subde- 

 missis ; prothorace subcylindrico, grosse et profimde rugoso-punc- 

 tato, in disco antico leviter canaliciilato ; elytris obtriangularibus 

 (basi latis truncatis, ad humeros siibporrectis, apicem versus gra- 

 datim acutioribus), profunde punctato-striatis ; antennis tarsisque 

 ferrugineis ; femoribus tibiisque fiisco-piceis. — Long. corp. lin. 3. 



Habitat Teneriffam sylvaticam, semel tantum lectus. 



The only example (a female) which I have yet seen of this Lapa- 

 rocerus was taken by myself in the sylvan regions of Teneriffe — 1 

 believe, at the Agua Mansa. It may immediately be recognized by 

 its rather elongate rostrum and its subcylindrical, rugosely punctured 

 prothorax, by the obtriangular outline of its sparingly setose elytra 

 (which are wide and truncated at the base, with the shoulders 

 slightly porrect, and gradually acuter to the apex), and by its surface 

 being tessellated with robust, greenish-metallic scales. It is pro- 

 bable, however, that the peculiarity in the shape of its elytra would 

 (as in the case of the Atlantis canariensls) be less expressed in the 

 male sex. 



545. Laparocerus eUipticus. 



L. vel ferruginous vel piceus, subnitidus, dense et grosse sericeo- 

 metallico-squamoso-tesseUatus pilisque elongatis suberectis versus 

 elytrorum apicem obsitus ; rostro crasso, leviter canaliculato, oculis 

 magnis ; prothorace parvo, angusto, subcylindrico, ruguloso-sub- 

 alutaceo, parce et leviter punctato, per basin subemarginato ; ely- 

 tris convexis, ovato-ellipticis (versus humeros angustis, inde pone 

 medium gradatim latioribus, sed ad apicem parum subito acutis), 

 basi conjunctim trisinuatis, leviter punctato-striatis, interstitiis al- 

 ternis plus minus laete tessellatis ; antennis subrobustis pedibusque 

 rufo-ferrugineis (femoribus tibiisque ssepe obscurioribus). 



Mas vix minor, angustior, tibiis paulo magis curvatis necnon ad 

 apicem internum distinctius uncinatis. 



Fcem. vix major, latior, tibiis paulo rectioribus, ad apicem internum 

 fere simplicibus.— Long. corp. lin. 4-5. 



Laparocerus eUipticus, Woll., Aim. Nat. Hist. xi. 220 (1863). 



Habitat in sylvaticis excelsis Teneriffae et Palmae, vel inter muscos 

 lichenesque ad truncos arborum crescentes,vel subcortice laxo latitans. 



This large and beautiful Laparocerus, which I have observed 

 hitherto only at a rather high elevation within the sylvan districts of 

 Teneriffe and Palma, is at once conspicuous by its sericeous, densely 

 squamose surface (the preponderating colour of the scales being either 

 an obscure metallic green or a pale coppery or golden brown) and 



