Longicornia Malay ana. 663 



with a very short dispersed pubescence ; body beneath 

 reddish-brown, covered with long yellowish hairs, except 

 the abdomen which is very glossy and glabrous; legs 

 brown, the apices of the tibiae and the tarsi with a golden 

 ferruginous pubescence; antennte with the three basal 

 joints, except the tip of the third, brown and roughly 

 punctured, the rest, including the tip of the third, ochra- 

 ceous, finely grooved, the apices a little dilated, the space 

 between each of them with a glossy black spot. 

 Length 19 lines. 



Ctenoscelinj:. 



Xixuthrus, the Malayan representative of this sub- 

 family, is considered by M. Lacordaire to be a very 

 ambiguous form, but he has followed M. Thomson in 

 classing it with Gtenoscelis and its allies, all natives of 

 America. I now add a second genus. 



Oenera. 



Anterior angles of the prothorax 



rounded Xixuihrus, Thoms. 



Anterior angles of the prothorax 



produced Dysiatus, n. g. 



XlXUTHEUS. 



Xixuthrus, J. Thomson, Syst. Ceramb. p. 296 j Lacor- 

 daire, Gen. viii. 90. 



Caput angustatum, inter oculos sulcatum ; mandilndce 

 sub-verticales, productse, leviter arcuatse, bidentatee. 

 Labium bilobum. Antenncs graciles, dimidio corporis 

 longiores ; scapo subelongato, depresso, scabro, intus 

 denticulate ; articulo tertio longitudine scapo sequali, 

 sequentibus gradatim brevioribus. Prothorax trans- 

 versus, utrinque denticulatus, angulis anticis hand 

 producfcis. Scutellum lateribus parallelis, postice 

 subrotundatum. Elytra ampla, angulo suturali spi- 

 nosa. Pedes elongati; fetnora linearia, subtus bi- 

 seriatim denticulata; tihice anticse apice dilatatae et 

 extus bidentatae, omnes denticulis instructae ; tarsi 

 mediocres, antici articulo basali elongate. Presternum 

 productum, postice rotundatum. Mesosternum de- 

 pressum, postice incisum. Corpus pubescens. 



