Mr. T. V. Wollaston on Additions to Madeiran Coleoptera. 259 



Genus HOLOPARAMECUS. 



Curtis, Ent. Mag. i. 186 (1833). 



Holoparamecus Kunzei, Aube. 



H. elongato-oblongus, angustus, rufo-testaceus, subnitidus et sub- 

 tiliter pubescens ; prothorace ad latera minus curvato, postice 

 paulo angustato et in medio inaequaliter transverso-signato ; elytro 

 singulo stria suturali recta impresso; antennis 10-articulatis. 



Long. corp. lin. f . 



Habitat Maderam australem, a Dom. Bewicke prope urbem Fun- 

 chalensem captus. 



Calyptobium Kunzei) Aube, Ann. de la Soc. Ent. de France (2^ me serie), i. 

 (1843). 



H. larger and more linear than the H. niger, the elytra being 

 much longer in proportion ; also of a paler hue, being uniformly 

 rufo-testaceous ; much less shining, and scarcely perceptibly 

 punctured, even beneath the microscope, but more evidently 

 pubescent. Head narrower than the anterior part of the pro- 

 thorax, which is less curved at the sides, and not so suddenly 

 narrowed behind, as is the case in the H. niger, and with its 

 posterior region transversely and unevenly impressed, the im- 

 pressed band being narrower in proportion than in that insect, 

 and therefore not continued so close towards the hinder angles 

 (which, in like manner, have their extreme lateral edge a little 

 thickened, but with no tendency to be produced backwards on 

 the surface of the pronotum), and being more evidently termi- 

 nated on each side by a very short longitudinal costa, and 

 interrupted by a still more perceptible one (though equally 

 short) in the centre, which medial one merges into an obscure 

 dorsal channel in front of the transverse impression, deep on 

 the disk, but evanescent before and behind. Elytra more pro- 

 duced, or lengthened, posteriorly than in the H. niger, and with 

 the sutural stria on each less curved, being almost quite 

 parallel with the suture. Antenna, which are composed of ten 

 joints only (instead of eleven, as in the H. niger}, concolorous 

 with the rest of the surface. Legs a shade paler. 



The above comparative description will at once point out the 

 distinctions between the present Holoparamecus and its Ma- 

 deiran congener, the H. niger. Indeed the structural character 

 of its antennae, which contain a joint less than those of that 

 insect (the numerical variation of the antennal articulations 

 being one of the peculiarities of the members of this genus), 

 would of itself suffice to separate it ; nevertheless, its larger size 

 and many other specific features have been fully recorded in 

 the diagnosis. Although I felt convinced it was the Calyptobium 



