Ptinidcc of the Canary Islands. 197 



pilose than is the case in any of the following species except the 

 C. suhcahus, and have their basal nodes (or abbreviated costse) 

 considerably elevated, or developed, causing the scutellary region 

 to seem very deeply impressed. Their surface, moreover (which 

 appears minutely alutaceous when viewed beneath the microscope), 

 has a just perceptible suhcenescent tinge, and is usually ornamented 

 with a rather conspicuous postraedial zigzag fascia of whiter 

 scales, — the anterior one being for the most part more or less (or 

 even entirely) obsolete. It is attached apparently to the sylvan 

 districts of TenerifFe, at intermediate and lofty elevations, and is 

 generally very scarce. Nevertheless in the damp woods on the 

 mountains above the Agua Mansa I have taken it in tolerable 

 numbers (beneath stones and pieces of rotten wood); as also, 

 though much more sparingly, at the Agua Garcia. I have great 

 pleasure in dedicating it to my friend M. H. De Bonvouloir, of 

 Paris, so well known for his devotion to the cause of Entomology, 

 and whose recent Monograph of the Throscidce (a pattern of 

 what a monograph should be) has given him a distinguished place 

 amongst our leading Coleopterists. 



2. Casapus dilalicoUis, n. sp. 

 C. niger; prothorace picescenti, antice plus minus distincte 

 dilatato, costis discalibus obsoletis (disco subsequali), late- 

 ralibus sat distinctis, ad basin parce fulvo-squamoso ; elytris 

 ovalibus, basi truncatis, levissime substriato-punctatis, pilis 

 elongatis ubique et setis densioribus ad basin (prsesertim ad 

 humeros) obsitis, costis 4 basalibus (postice evanescentibus) 

 minus elevatis, fascia indistincta postraedia [antemedia obso- 

 lete] albido-ornatis ; antennis pedibusque elongatis, sat ro- 

 bustis, rufo-ferrugineis, squamosis. 



Far. (3 [an species distincta ?] prothoracis costis discalibus 

 paulo majoribus, elytris parcius pilosis, postice vix acuti- 

 oribus, minutissime sub-alutaceis, costis basalibus magis 

 elevatis. 

 Long, cor p. lin. vix 1| — 2. 



Habitat in locis inferioribus et intermediis Teneriftae, sub 

 lapidibus, passim ; ad Orotavam et in montibus mox supra 

 Sanctam Crueem statum. typicum deprehensi ; sed var. /3 locis 

 paulo editioribus, sc, Souzal, Las Mercedes, Taganana et ceet. 

 pertinet. 



Whilst the last species is peculiar to the higher elevations, 

 within the sylvan districts of TenerifFe, the present one descends 

 to the level of the sea-shore. It may be readily known from the 



