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



The present insignificant little Trogophlceus, a single specimen 

 of which I have found amongst some insects collected by Mr. 

 M. Park near Funchal, is apparently as small as the minute T. 

 simplicicollis, with which, in its very dense and flue sculpture, it 

 nearly agrees. Nevertheless its paler limbs and totally different 

 prothorax (which is not narrowed behind as in that species, nor 

 free from longitudinal furrows) will of themselves at once sepa- 

 rate it therefrom ; whilst from its still nearer ally, the T. corti- 

 cinus, it is easily distinguished by its smaller size and closer and 

 very much finer punctation, as well as by its more obsolete 

 prothoracic fovese, and by the paler hue of its legs and the basal 

 half of its antennae. 

 * 



(Subfam. Omaliades.) 



Genus Philorhinum. 



Kraatz, Nat. der Ins. Deutschl. ii. 966 (1858). 



Philorhinum humile, Erichs. 



P. lineare, depressum, pubescens, nigrum ; capite, prothorace elytris- 

 que paulo dilutioribus, dense sequaliter punctatis ; antennarum 

 basi pedibusque dilute testaceis. 



Long. corp. lin. 1. 



Habitat Maderam, a Dom. Bewicke ad S. Antonio da Serra sestate 

 1859 repertum. 



Arpedium humile, Erichs., Gen. et Spec. Staph. 860 (1840). 



my ops, Halidav, Entomologist, 187 (1841). 



■ humile, Redt., Fauna Austr. (edit. 2), 246 (1857). 



Philorhinum humile, Kraatz, Nat. der Ins. Deutschl. ii. 966 (1858). 



P. linear, depressed, black, slightly shining, and clothed with 

 a short, decumbent, cinereous pile. Head, prothorax, and elytra 

 rather more piceous, or diluted in colouring, than the abdomen, 

 and densely, deeply, and equally punctured throughout : the 

 first subtriangular, with the eyes prominent, and the second 

 transverse-subquadrate, being nearly equally rounded at the 

 sides. Antenna fusco-ferruginous towards their apex; their 

 base and the legs diluted testaceous. 



The abbreviated elytra, leaving five segments of the abdomen 

 visible, and the elongated basal joint of the hinder feet, will 

 of themselves at once distinguish the genus Philorhinum from 

 its immediate allies. The single individual described above, 

 identified by Mr. Janson with the common European P. humile, 

 with which it appears in every respect to agree, was de- 

 tected by Mr. Bewicke at S. Antonio da Serra (in Madeira 

 proper) during the summer of 1859. In the English specimens 

 which I have examined, the males seem to have their antenna? 

 a trifle longer than those of the females, and with the apical 



