230 Longicornia Malayana. 



head finely punctured, a pale luteous oblique stripe beneath the 

 eye ; prothorax minutely granulate, with three or four transverse 

 but more or less marked sulcations ; scutellum triangular ; elytra 

 coarsely punctured, with three raised lines, the intervals with two 

 rows of brown punctures, spotted with yellowish, a large irregular 

 patch at the apex ; body beneath and legs dark chesnut-brown, 

 shining, with patches of greyish pile ; antennae dark brown, the 

 first four joints covered with numerous erect stiff dark-brown 

 hairs, more appressed and curved on the scape, the remainder pale 

 ferruginous, covered with a luteous pubescence. 

 Length 7| lines. 



Pekibasis. 

 Peribasis, J. Thomson, Syst. Cevamb. p. 86. 



Caput mediocre, supra angustius ; tuberibus antenniferis vali- 

 dissimis, paulo divergentibus, basi contiguis. Oculi me- 

 diocres, ore distantes. AntenncB ($ ) corpore plus dupio 

 longiores, baud fimbriatae ; scapo gradatim incrassato, apice 

 valde cicatricoso ; articulo tertio multo longiore, 4'" et 5'" 

 sensim brevioiibus, caeteris (ultimo excepto) brevioribus et 

 agqualibus ; ultimo praecedente multo longiore ; ( ? ) corpore 

 vix longiores, articulis a tertio gradatim brevioribus. JPro- 

 ^//oraa: sub-transversus, ($) apice paulo angustior, utrinque 

 in medio fortiter spinosus. Elylra sub-trigonata, hiimeris 

 producto-lobatis, apicibus rotundatis. Pedes mediocres, in 

 utroque sexu sub-aequales ; tarsi antici in maribus paulo 

 latiori. I'rosternum sub-elevatum. Mesosternum productum. 

 A very natural genus, distinguished from Pharsalia by its an- 

 tennae, and their diverging tubers not produced internally, and 

 from Cereopsius by the form of the prothorax, the lobed shoulders 

 &c. Monohammus larvalus, White (Proc. Zool. Soc. 1858, 

 p. 406) also belongs to this genus. P. pubicollis appears to be 

 common at Penang. 



Peribasis aspersa. 



Monohammus aspersus, Pascoe, Trans. Ent. Soc. ser. 2, iv. 48. 

 P. fusca, vel rufo-fusca, glabra, protiiorace vittis duabus, 

 elytrisque maculis numerosis, pubescentibus, fulvis et laete 

 croceis ; antennis articulis 3" — 6" basi pallidis, vel car- 

 neis. 

 Hub.- Singapore. 



