374 Mr. T. Vernon Wollaston on 



as in those from TenerifFe ; nevertheless, my own belief is that 

 they are a mere phasis of the latter. The P. ajjinis is, I believe, 

 attached principally to the Euphorbia-stems of low and intermediate 

 elevations, rather than to the forest trees of the higher ones ; at 

 all events I have taken the normal state in such positions at Taga- 

 nana, in the north of TenerifFe, and also more sparingly at tlie 

 Agua Mansa ; the var. (3 was found at a very sliglit altitude above 

 the sea in the region of El Golfo, on the west of Hierro. Of the 

 former I have examined carefully, beneath the microscope, twenty- 

 two specimens; but of the latter only nine. 



11. Phlosophagtts sirnpUcipes, n. sp. 



P. nigro-piceus ; prothorace valde profunde punctato ; scutello 

 distincto, triangulari ; elytris oblongo-ovalis, profunde punc- 

 tato-striatis (punctis magnis), interstitiis convexis ; pedibus 

 rufo-piceis, tibiis sub-rectis, tarsorum articulo tertio vix 

 dilatato; antennis ferrugiueis, crassiusculis, scapo breviiisculo, 

 capitulo ovali. 

 Long. corp. lin. 1|- — vix 1§. 



Habitat Teneriffiim, arbores emortuas fici in locis inferioribus 

 terebrans. 



The P. simplici'pes is very closely allied to the laurineus, but is 

 rather smaller, with its elytra just perceptibly more ovate (or ex- 

 panded behind the middle), with the interstices not quite so con- 

 vex, and with its antenna? a little thicker, darker and shorter (the 

 scape particularly being more abbreviated, and the sub-claval 

 joints somewhat broader). A more conspicuous character, how- 

 ever, exists in its third tarsal articulation, which is hardly at all 

 dilated and bilobed. Unlike the P. laurinexis, it appears to occur 

 at low elevations, and to be attached (so far as I have hitherto 

 observed) to decayed fig-trees, in the dry, rotten wood of which 

 it frequently swarms. Under such circumstances I have taken it 

 abundantly in the Barranco do Passo Alto, near Santa Cruz, of 

 TenerifFe. The above diagnosis is drawn out from twenty ex- 

 amples. 



1 2. Phloeophagus piceus, n. sp. 

 P. piceus, angustulus ; prothorace sat profunde punctato ; 

 scutello vel vix vel baud observando ; elytris oblongo-ovatis, 

 ad humeros rectioribus (i.e. minus oblique truncatis), sat 

 profunde punctato-striatis, interstitiis paulo convexis; pedibus 

 rufo-piceis, tibiis sub-rectis, tarsorum articulo tertio paulo 



