292 On new Longicorn Coleoptera from New Guinea. 



towards the base, where they are smoother and more sparsely 

 punctured ; each bears three very feebly raised and indistinct 

 lines. 



This species is smaller and narrower than A. paralhlus, 

 Waterh., from which it may be easily distinguished by its 

 colour, by the difference in the punctuation of the lateral 

 parts of the pronotum, and the greater deflexion of the lateral 

 ridge towards the outer angle of the anterior acetabulum. 



Lamiidse. 

 Ilaplohammus longipennis, sp. n. 



Nigro-fuscus, pubc grisea sat dense obtoctus, capiti-s fronte verticeque 

 sparse puuctatis ; prothoracis dorso subina;quali, medio sat dense 

 puuctato ; elytris elongatis, dense puuctatis, postice augustatis, 

 apicibus late truncatis, extus valde spinosis. 



Long. 27-30 mm. 



Ilab. Mount Arfak. 



Dark brown, with a short close greyish pubescence. Head 

 distinctly but rather sparsely punctured in front, and with a 

 iQV7 sparsely scattered punctures on the upperside. Pro- 

 thorax slightly uneven above, rather thickly punctured in the 

 middle. Scutcllum with a fulvous pubescence. Elytra 

 elongated, thickly punctured, narrowing gradually behind, 

 and each at the apex broadly truncate, with a strong spine at 

 the outer angle. Antenna3 in the male more than twice the 

 length of the body, the scape rather strongly thickened 

 towards the apex, where the cicatrice has a prominent rim on 

 the anterior side, but no limiting edge on the posterior side ; 

 the third joint is twice as long as the first, the fourth shorter 

 than the third. 



Potemnemus tuherifer^ sp. u. 



Nigro-fuscus, pubo brevi fulvo-brunnea obtectus ; antcnnis basi 

 pedibusquo punctis uigris glabris dense maoulatis ; prothoracis 

 dorso baud tuberculato, linea medio-longitudiuali fulva, ct ad 

 medium maculam glabram circumscriboute ; elyrris dorso planis, 

 postico sat valde declivis, utrisquc ad basin tuberemaguo rotuudo 

 dense nigro-granulato, instructis ; lateribus verticalibus utrisquo 

 supra carinatis ct spinoso-grauulatis, apicibus oblique truncatis, 

 oxtus spinosis, intus dentatis. 



Long. 35 mm. 



Ilah. Mount Arfak. 



This species may be easily distinguished from those of this 

 genus hitlierto described by the presence of a large rounded 

 hump, thickly studded with black shining granules, at the 



