netv genera and species of Halticinoe. 435 



Genus AcROCRYPTA, Baly. 



Journ. of Entom. i. p. 457. 



Acrocrypta aureipennis. 



Rotundata, convexa, riifa, nitida, scutello purpureo- 

 nigro ; anteiinis extrorsum modice incrassatis, articulis 7 — 

 10 nigris, ultimo albo ; elytris aureis, late vlridi-limbatis. 



Var. A. Pectore abdomineque piceo-tinctis. 



Long. 3^ — 4 lin. 



Borneo ( Sarawak) ; collected by Mr. Wallace. 



Head smooth, impunctate, impressed down the front 

 with a faint longitudinal groove ; encarpas remote ; an- 

 tennfB shorter than half the length of the body, their outer 

 half slightly thickened. Thorax three times as broad as 

 long; sides nearly straight, slightly converging from base 

 to apex, anterior and hinder angles thickened, the former 

 obtusely truncate ;. basal margin slightly oblique and 

 bisinuate on either side, medial lobe obtusely rounded ; 

 upper siu'face impunctate. Elytra much broader than 

 the thorax, shoulders broadly rounded ; surface finely and 

 subremotely punctured; humeral callus slightly thickened ; 

 just without the callus is a single row of deep punctures, 

 which terminate posteriorily in a large fovea ; inflexed 

 limb concave, its outer margin dilated, metallic blue. 



Genus SuTREA. 



Corpus oblongo-elongatum, aut anguste ovatum, modice 

 convexum. 



Caput exsertum, breve, facie perpendiculari, inter 

 oculos elevata, eiicarpis contiguis ; antennis filiformibus. 

 Thorax transversus, lateribus marginatis. Elytra thorace 

 paullo latiora, parallela aut anguste ovata, confuse punc- 

 tata, limbo laterali distincte dilatato, paullo reflexo. Pedes : 

 coxis anticis prosterno paullo altioribus;_/emor«Z»?<5posticis 

 incrassatis ; tibiis dorso non sulcatis, quatuor anterioribus 

 apice muticis, posticis spino acuto armatis ; tarso postico 

 ad apicem tibiee inserto ; unguiculis appendiculatis. 

 Prosternum oblongum, concavum, apice plerumque dila- 

 tatum; acetabulis anticis apertis ; mesosternum trigonatum, 

 apice angulato-emarginatura. 



Nearly allied to Sebcethe, separated by its narrower 

 form, the less dilated sides of the thorax and of the elytra, 



