176 Mr. H. W. Bates on Longicorn 



Isevi polita; scutello albo; elytris apice oblique truncatis 

 angulo exteriori leviter dentato, supra passim punctatis. 



Long. 5j lin. S . 



One example of this very distinct species in Mr. Belt's 

 collection. 



The number of spines on the antennee which Lacordaire 

 (Genera, vol. viii. p. 316) believed to be a specific or 

 sectional character in this genus, is really a sexual one in 

 some cases. Thus, Tr. albomaculatns in the ^ has only 

 two spines, and in the $ six. In distinctus (Newm.) I 

 find three in the S , and six in the ? . 



Perihceum villosulum, n. sp. — Quam P.pulescenti magis 

 elongatum et parallelum, nigro-fuscum nitidum, passim 

 longe griseo-hii-sutum, antennis pedibusque testaceo- 

 rufis ; capite grosse punctato-rugoso : thorace capite vix 

 latiori, elongate, medio paululum dilatato, haud spinoso, 

 supra tuberibus vix elevatis quinque, median o elongate, 

 interstitiis grosse punctate - rugosis ; scutello cinereo- 

 tomentoso ; elytris apice sinuatim truncatis, angulo ex- 

 teriori longe spinoso, interioj-i producto acuto, supra 

 passim punctatis; prosterno medio late sulcato. 



Long. 8 lin. ^ . 



In Mr. Belt's and my own collection, as in all species 

 of Periboeum, the thighs are abruptly clavate. 



Perihceum bimaculatum, n. sp. — Rufo-testaceum, setis 

 longissimis erectis vestitum, elytris medio macula lata, 

 transversa, testaceo-alba, fusco-cincta ; capite crebre reti- 

 culato-punctato ; thorace elongate, medio dilatato, utrin- 

 que vix obtuse tuberculato, supra reticulato-foveato, linea 

 dorsali abbreviata leevi ; elytris haud linearibus, medio 

 leviter dilatatis, deinde rotundato-angustatis, apice bre- 

 viter truncatis, angulo exteriori breviter producto, supra 

 sparsim punctatis, punctis majoribus piliferis lineatim 

 seriatis : antennis art. 3-5 spinosis, Jris spinis quam in 

 $ brevioribus. 



Long. 4-5 lin. c? ? • 



A pretty little species allied to Nephalius Poeyi (Sagra, 

 Hist, de Cuba, pi. 11, f. 11), but having the thighs rather 

 more abruptly clubbed, and the thorax not distinctly 

 tubercled on each side. The white spots of the elytra 

 are transverse, and separated only by the sutural border. 

 The femora are without spines at the apex. 



