Longicornia Malay ana. 577 



Head, prothorax, scutellum, and legs black, abdomen 

 and elytra rich vermilion ; protliorax finely but distinctly 

 transversely striate ; elytra rather coarsely and closely 

 punctured, the epipleurae slightly sinuate at the apex; 

 antennee black, the last six joints with a brownish to- 

 mentum. 



Length 6| lines. 



Plutonesthes. 



Plutonesthes, J. Thomson, Syst. Ceramb. p. 160; 

 Lacordaire, Gen. viii. 522. 



Caput antice leviter productum, fronte haud lamelli- 

 fera ; mandibulce mediocres . Oculi fortiter emarginati. 

 Antennce basi distantes, corpore breviores ; articulis 

 3 et 4 subcylindricis, cseteris utrinque dilatatis, gra- 

 datim brevioribus, ultimo ovato, integro. Protliorax 

 oblongus, pone apicem constrictus. Elytra sub- 

 planata, postice latiora, carinata. Pedes mediocres; 

 femora pedunculato-clavata. Pro- et meso-sterna ut in 

 Pyreste. 



A well marked and very natural genus, at once recog- 

 nizable by its abruptly clavate femora. The type, P. 

 rujipennis, Thorns., is glossy black, the elytra red, except 

 at the apex which is also black, and the prothorax is 

 strongly punctured. P. crocata, Pasc. (Proc. Zool. Soc. 

 1866, p. 514) is a much longer insect than the one described 

 below, the elytral carinte feeble, the posterior femora with 

 a considerably longer peduncle, the colour paler, and the 

 whole prothorax uniformly orange. 



Plutonesthes amoena. 



P. nigra, pilosa; prothorace pone apicem elytrisque 

 sericeo-aurantiacis, his apice nigro-chalybeatis ; me- 

 tasterno abdomineque cyaneis, nitidissimis. 



Hah. — Singapore. 



Black, with scattered erect hairs, especially on the legs ; 

 head with a chalybeate tinge, closely punctured; pro- 

 thorax covered posteriorly with an orange pubescence, 

 the sides and anterior portion glossy black ; scutellum 

 rounded, brownish; elytra with a dense roughish orange- 

 red silky pubescence, the apex steel-black, each with a 



