Longicornia Malayana. 675 



like body at its base^ the punctures and the spaces be- 

 tween equally glossy under the lens in certain lights, but 

 from their number casting a shade which gives the whole 

 surface, to the eye, an opaque appearance, the disc 

 irregular, having six very feeble elevations placed trans- 

 versely; scutellum transverse, rounded behind, finely 

 granulate; elytra not broader than the prothorax at its 

 base, black, very glossy, more or less confluently punc- 

 tured, the punctures very small, each elytron with four 

 slightly raised lines, including one close to the sutural 

 line ; body beneath brownish-black, the sterna finely 

 granulate, the abdomen and legs glossy ; antennae shining 

 brownish. 



Length 34 lines. 



Hystatus. 



Hystatus, J. Thomson, Essai &c., p. 321; Lacordaire, 

 Gen. viii. 134. 



Caput validum, inter oculos planatum, vertice leviter 

 sulcatum ; mandibulce horizontales, robustae, intus uni- 

 dentatse. Oculi anguste emarginati, supra distantes. 

 Antennce breves ; scapo brevi, crasso ; articulo tertio 

 longiore ; quarto et caeteris multo brevioribus, sub- 

 sequalibus; ultimo appendiculato. Pr othor ax trsma- 

 versus, depressus, apice truncatus, angulis anticis 

 productis, basi bisinuata, lateribus denticulatis. 

 Elytra elongata, depressa, angulo suturali mucronato. 

 Pedes mediocres, validi, inermes; tibice apice dila- 

 tatae ; tarsi articulo ultimo cseteris conjunctim duplo 

 longiore. Prostemum productum, postice rotunda- 

 turn. Mesosternum declive. Abdomen subtilissime 

 rugosum, segmentis quatuor basalibus apice fascia 

 laevi marginatis. Corpus glabrum. 



The insect described below scarcely agrees with M. 

 J. Thomson's H. javanus, nevertheless, I have thought 

 it best, without an examination of his type, to refer my 

 specimens to it. M. Lacordaire describes another species, 

 PL. Thomsonii, apparently from the same localities. Mr. 

 Wallace found his specimens in rotten wood. 



