APPENDIX. 71 



Mycetoporus adumbratus, n. sp. 



M. solidicomi similis, sed forsan paululum major ; prothorace nigro, 

 in margine basali praesertim ad angulos posticos testaceo, punctis 

 4 anticis a margine antico sensim remotioribus ; elytris sublongi- 

 oribus et fere nigris (sc. ad humeros necnon per marginem posti- 

 cum solum testaceis) ; antennis paulo longioribus. Long. corp. 

 lin. U. 



o 



Habitat Teneriffam, a DD. Crotch dcprehensus. 



Detected by the Messrs. Crotch in Teneriffe (in the Final above 

 Ycod el Alto), and, like the following species, hitherto unique. It 

 is much allied to the M. solidicornis, of which at first I had imagined 

 that it might be only a dark variety ; but a more accurate inspection 

 reveals too many differences to render this probable. Judging from 

 the individual before me, the M. adumbratus would appear to be a 

 trifle larger than the solidicornis (though this may be merely acci- 

 dental) ; its prothorax (instead of being testaceous) is black, with 

 only the hinder margin (particularly about the basal angles) pale, 

 and has the four anterior punctures further removed from the front 

 edge ; the dark patch, or cloud, on the disk of each elytron is not 

 only very much darker but also so much suffused as to cover the 

 greater portion of the surface, extending to the extreme base, and 

 leaving only the posterior margin and a spot at the shoulders testa- 

 ceous ; and its antennae are a little longer. 



Mycetoporus discoideus, n. sp. 



M. elongato-ellipticus ; capite nigro-piceo; prothorace, elytris ab- 

 domineque (valde proftinde punctate) infuscato-testaceis, elytris 

 singulis per marginem lateralem anguste nigris necnon in disco 

 pbstico ample nigro-maculatis, abdominis segmentis singulis antice 

 nigris ; antennis (breviusculis, articulo ultimo brevi subgloboso) 

 fuscis, ad basin pedibusque saturate testaceis ; prothoracis punctis 

 4 anticis a margine parum remotis ; elytris seriebus tribus dense 

 asperato-punctatis. Long. corp. lin. 2. 



Habitat Teneriffam, a DD. Crotch semel tantum lectus. 



A single example of this Mycetoporus was taken by the Messrs. 

 Crotch in Teneriffe. In its general aspect and colouring it is a good 

 deal suggestive of the BolitoHus luridus ; nevertheless the aciculated 

 last joint of its maxillary palpi at once assigns it to the present 

 genus. It seems to be a little shorter and relatively broader than 

 the M. rufus, and its colour is entirely different, the head being 

 black (or nearly so), whilst the prothorax and elytra (the latter of 



