INSECTA MADERENSIA. 159 



merely to be taken into account, they might appear to arrange themselves under two 

 well-defined sections ; in the first (III. 8) of which the antennae are long (especially 

 in the males) and filiform (the articulations being inclined, if anything, rather to 

 increase hi length and dimiaish in breadth), and the forehead is terminated abruptly, 

 and hollowed out, immediately before the point of their insertion : wliUst in the 

 second (III. 7, 9) the antennae are comparatively abbreviated, moniliform, and roliust 

 (the joints becoming, for the most part, gradually thicker from the base), and the 

 forehead is much more produced anteriorly, being truncated only at its extremity, 

 — and generally moreover in a straight line instead of an incui'ved arc. These 

 modifications however, although remarkably apparent in the extremes, are so far 

 lost sight of, and merged into each other, in the means as to be scarcely traceable ; 

 and hence it is not possible to make use of them, for even subsidiary purposes, in 

 a universal arrangement. Still, since aU the representatives which I have hitherto 

 been able to detect in the Madeira Islands are unmistakeable members of one or 

 the other of these ojjposite types, the divisions may be employed hi the present 

 instance with great convenience. 



§ I. AntenncB longed filiformes, articulo ultimo dehiliore tuherculiforml (quasi ex articulis duobus composito) : 

 frons ad antennarum insertionem late subemarginato-truncata : elytra apice truncata. 



128. Laemophloeus Lonacioides, Wall. (Tab. III. fig. 8.) 



L. plumbeo-piceus granulatus opacus, capite prothoraceque subtiliter punctatis, hoc breviusculo sub- 



quadrato, angulis antici-s subexstantibus, posticis subrotundatis, margine antico lineis duabus 



brevissimis politis submediis notato, elytris testaceis striatis ad apicem valde truncatis, sutura, 



striis et interdum margine plumbeis, antennarum basi ferruginea, pedibus testaceis. 



Mas, antennis longissimis, prothorace pone discuni punctis duobus magnis (rarius evanescentibus) 



utriuque longitudinaliter impresso. 

 Foem. antennis minus elongatis, prothorace haud impresso. 

 Long. Corp. lin. mas, If : fmm. I3— 1|. 



Habitat Maderam sylvaticam, sub cortice arbonim, rarissimus : in sylvis convallis Boa Ventura dictse 

 d. 18 Febr. a.d. 1849 primus iuveni ; necnon in castanetis Sanctse Annse sestate media a.d. 1850 

 parce coUegi. 



Ij. large, exceedingly depressed, dull piceous with a lead-coloured tinge, opake, and almost free from 

 pubescence. Head and prothorax very closely and rather coarsely granulated, and with fine 

 punctures intermixed : forehead with the anterior edge truncated, and hollowed out immediately 

 in front of the antennse ; with a raised marginal stria, and a very distinctly impressed central 

 one down the disk. Prothorax rather short, subquadrate, and slightly narrowed behind; the 

 posterior angles somewhat rounded, and the anterior ones a little prominent; with two small, 

 polished, longitudinal spaces in the centre of the front margin, — resembling very minute portions 

 of glabrous lines. Elytra more delicately granulated than the head and prothorax, very shortly 

 and most sparingly pubescent ; very much truncated behind, exposing the pygidium ; distinctly 



