the Atlantic Cossonides. 373 



the latter. I liave taken the P. lannncus abuntlanlly beneath the 

 hark and in tlie rotten wood of old laurels in most of the few 

 remaining sylvan districts of 'I'enerifFe, such as the Agna Garcia, 

 Las Mercedes, Taganana, &c. ; and the var. ft 1 found (so far as 

 I can recollect) under similar circumstances in the Barranco da 

 Agua, on the north-west of the island of Palma. Of the typical 

 form I have examined carefully no less than 161 specimens ; and 

 of the var. ft, eighteen. 



]0. Phlosopliagus ajjinls, n. sp. 



P. nigro-piceus ; prothorace sub-alutacco, sat profunde pmic- 

 tato ; scutello distincto, triangulari ; elytris oblongo-ovatis, 

 sat profunde ])unctato-striatisj interstitiis plus minus denres- 

 siusculis, pedibus rufo-piceis, tibiis rectis, larsorum articulo 

 tertio sat distincte dilatato-bilobo ; antennis fcrrugincis, capi- 

 tulo sub-acuto-ovali. 



Var. ft) proxhiuis [an s])ecies distincta?], prothorace vix vel 

 hand subalutaceo, elytrornm interstitiis sub-convcxis, capitulo 

 elongate, [^Insula Ilierro.] 



Long. Corp. lin. 1^— 1|. 



Habitat Teneriffam, nisi fallor in ramis Eupliorbiarum, liinc 

 inde vulgaris : var. ft in insula Hierro adluic sola observavi. 



For the present Phloeophagus I have no very decided structural 

 character, and I can therefore best express \tnegat'ivelij, — i. e,, by 

 stating what it is not. 'J'hus, its exceedingly perceptible scutelluni 

 (when viewed beneath the microscope) at once removes it from 

 the /-•. caid'mm and j)'tcei(s, whilst its sufBciently expanded third 

 tarsal-joint will likewise prevent its confusion with the latter, and 

 therefore d fortiori with the shnpUcipes. It remains, therefore, 

 only to point out its distinctions from the laurineus, and tliis, in its 

 normal state, is easily done, since it is not only less deeply sculp- 

 tured, and with its antennfe somewhat darker and not quite so 

 elongate, but its elytral interstices are less convex, and its pro- 

 thorax (like the var. ft of the laurineus) is more or less sub-aluia- 

 ceons and with its punctures a little smaller and more dense. Li 

 the var. ft (from Hiorro) all these points are a trifle less evident, 

 and it is possible, therefore, that further material from that island 

 might prove the ^^ car. ft) " to be distinct, since it stands in much 

 the same relation to the typical specimens as thePalman ^^ var. ft" 

 of the last species does to its supposed type. In the Hierro 

 examples the prothorax does not appear sub-alutaceous under the 

 microscope, and its elytral interstices are not quite so depressed 



