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



Trichopteryx aptera, Gillm., St.Deutsch. Fna, xvii. 63. pi. 324. f. 4 (1845). 

 Ptilium apterum, L. Fairm., Faun. Franc. 339 (1854). 



P. oblong, narrow, testaceous, very slightly shining, and 

 sparingly clothed with rather coarse decumbent pile. Eyes 

 blackish, and a little prominent. Head and prothorax delicately 

 alutaceous; the former nearly semicircular; the latter a good 

 deal rounded at the sides, but narrower behind than in front, 

 and with the extreme hinder angles very minutely prominent, 

 free from foveas. Elytra very short, finely punctured, rather 

 rounded at the sides, and gradually narrower towards the shoul- 

 ders ; each of them separately rounded-off behind. Abdomen 

 largely uncovered, and apparently free from additional erect 

 hairs. Antenna and legs very pale. 



For this important addition to the Madeiran Coleoptera we 

 are indebted to the researches of Mr. Bewicke, who, during De- 

 cember 1860, detected several specimens of it "in a blue mould, 

 under bark," near Funchal. The Rev. A. Matthews informs me 

 that he believes it to be strictly identical with the P. aptera of 

 more northern latitudes, the only appreciable difference being 

 that in the examples from Madeira the eyes are blackish (instead 

 of concolorous with the rest of the surface), and therefore more 

 conspicuous than is usually the case. But as he likewise assures 

 me that he has lately captured, even in England, specimens of 

 the aptera in which the eyes are also dark, I conclude, with him, 

 that this character is probably a variable one, and perhaps in 

 some measure dependent on the greater or less intensity of the 

 light under which the species may happen to have been bred. 



Fam. Lathri&iadse. 



Genus Monotoma. 



Herbst, Natursyst. v. (1793). 



Monotoma longicollis, Gyll. 



M. angusta, picea, subnitida ; oculis fere ad basin capitis sitis ; capite 

 prothoraceque leviter punctulatis, hoc ad latera subrecto, angulis 

 anticis in spinam brevem obtusam productis, postice leviter bi- 

 foveolato ; elytris leviter seriatim punctatis ; antennis pedibusque 

 rufo-testaceis. 



Long. corp. lin. f. 



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

 1859, reperta. 



Monotoma longicollis, Schonherr, in litt. 



Cerylon longicolle, Gyll., Ins. Suec. iv. 635 (182/). 



Monotoma longicollis, Aube, Ann. de la Soc. Ent. de France, vi. 467. pi. 17- 

 £8(1837). 



, Redt., Fna Austr. 203 (1849). 



M. smaller, narrower, and less setose than any of the Madeiran 



