MECYNOTARSUS BISEÏIGER. 



117 



are truncated iu a curved line at the apex , and are rather 

 dispersedly besprinkled with large punctures. — Legs rather 

 stout and long, the femora swollen externally, the basal 

 joint of the posterior tarsi not very elongate. 



The shape of this curious species is analogous to that 

 of certain Tomoderus as Piochardi , ventralis etc. , but the 

 prothorax is more elongate , more strongly constricted and 

 the antennae have a quite different shape , being fusiform , 

 thickened at the middle, with the apical joint small, acu- 

 minate. 



Hab. Sumatra : district Rawas , captured in May (Scien- 

 tific Sumatra-Expedition). 



6. Mecynotarsus hisetiger, sp. n. ') 



Length 1,5 mm., breadth 0,5 mm. — Oblong, slightly 

 convex , black , very finely pruinose , rather glossy on the 



1) 111 the collection Laterte I find a pretty undescribed s])ecies which 1 

 think it advisable to describe on this occasion, because it inhabits the East 

 Indies, a vast region which has hitherto only furnished but few species to 

 this interestiug group: 



Mecynotarsus obliquemaculatus (Coll. Laf.), sp. n. 



Length 2 mm., breadth 1 mm. — Oblong, but little convex, very finely 

 alutaceous, clothed with a short pubescence which is silky, dense and recum- 

 bent; groundcolour pale yellow with the head slightly infuscate, a dark spot 

 close to the scutellum and an oblique black one behind the middle of the 

 elytra, shortened both inwards and outwards; eyes black. — Antennae fili- 

 form, reaching to the shoulders, the joints long, the apical one somewhat 

 thickened. — Prothorax rather convex, transverse, rounded at the sides, pro- 

 vided in front with a triangular horn which is rather' broad, rounded at the 

 tip , bordered with numerous small black denticules , with a concentrical crest 

 jn the shape of a very acute angle and likewise crenulated ; in the interval 

 very small distant granules may be observed; the thorax is strongly narrowed 

 at the base which is truncated and edged, and provided on each side with 

 two small distant denticules each of which bears a long erect hair. Scutellum 

 very small. — Elytra truncated at the base with the humeral angles distinct 

 although but little prominent, small swellings none; suture neither raised nor 

 sunken ; the sides slightly curved , having their greatest width behind the 

 middle, rounded at the apex. — Legs very pale, tibiae and tarsi elongated 

 and nearly filiform. 



The shape of the elytra and the well-defined black spots distinguish it iinnu- 

 diately from the pale varieties of M. rhinoceros. 



Notes from the Leyden IVIuseum , Vol. I"V. 



