APPENDIX. 



the island of Palma. This example (from which the above correctec 

 diagnosis has been drawn out) cannot possibly be referred to the 

 preceding species ; and if it be a normal one of its kind, I feel equally 

 satisfied that it cannot be regarded as any local modification of the 

 Madeiran X. barbata to which, however, it is more akin than to 

 the oficicola. From the latter it may at once be known by being 

 smaller, relatively shorter, more thickly and coarsely pubescent (even 

 its central region being sparingly clothed with a decumbent cinereous, 

 or fulvo-cinereous, silken pile), and of an obscurer hue its dark and 

 paler portions being more suffused, and therefore less defined ; by its 

 head being more densely pencillated ; by the hinder half of its pro- 

 thorax being much more evidently roughened with asperated punc- 

 tules ; and by the retuse apex of its elytra being much less flattened 

 obliquely and less abrupt, with the lateral rim imraised (only a small 

 medial part of it, forming an obscure tubercle, being elevated), and 

 with the apex considerably less produced, less recurved, and less 

 divaricate. 



From the Madeiran species it would seem to differ principally in 

 being relatively shorter and a little more densely pubescent, in the 

 hinder half of its prothorax being more distinctly asperate-punctu- 

 late, and in its retuse elytral apex having the central part less raised 

 and less thickened. Its intermediate tarsi appear to be extremely 

 long. 



Xylopertha barbata. 



X. ficicolce similis, sed paulo minor densiusque pubescens (etiam in 

 medio parce vestita) ; prothorace antice nigrescentiore necnon etiam 

 grossius mucronato, postice paulo evidentius subdensiusque aspe- 

 rato-punctulato ; elytrorum parte retusa multo minus abrupta 

 minusque deplanata, in elytris singulis nodulo parvo laterali ante 

 apicem (necnon interdum altero obscuriore costiformi medio) ter- 

 minata, apice vix producto, vix bipartite, vix recurvo, per suturam 

 in medio etiam magis elevata et ibidem conspicue bipartita. Long, 

 corp. lin. 2-3j. 



Enneadesmus barbatus, Woll., Ann. Nat. Hist. v. 359 (1860). 



Habitat Maderam, inter lignum aridum vetustum haud procul ab 

 urbe Funchalensi a Dom. E. Leacock primo reperta. 



Obs. Species X. barbifronti affinis, sed longior, paulo minus 

 grosse pubescens ac laBtius colorata ; vertice minus dense penicil- 

 lato ; prothorace antice etiam grossius mucronato et postice minus 

 asperato-punctulato ; elytrorum sutura in medio partis retusae 

 magis elevata, magis incrassata, et magis bipartita ; tarsis inter - 

 mediis vix minus elongatis. 



