and Characters of undescribed Species. 379 



not longer than the thorax. Legs pale dingy yellow. Wings 

 cinereous ; veins black ; ulna much shorter than the humerus, 

 much longer than the radius. 



Length of the body 2^ lines; of the wings 6 lines. 



1'his species in the structure of antennse and of the scutellum 

 seems to connect Eucharis with Thoracantha. 



Sarawak, Borneo. Discovered by Mr. Wallace. In the 

 British Museum. 



Genus Thoracantha. 

 Thoracantha cyn'ijosea. 



Fcem. — ^neo-nigra ; facies striata ; antennae nigrae, filiforraes, 

 basi fulvae, apice rufescentes, capitis latitudine non longiores; 

 thorax altissimus ; scutum maximum, transverse striatum ; 

 scutellum striatum, spinis duabus abdominis apicem attin- 

 gentibus; .petiolus brevissimus ; abdomen nigrum, subtus 

 apiceque fulvum, thorace non longius ; pedes pallide fulvi ; 

 alse limpidae. 



Mas. — Nigro-aenea ; facies lateribus excavatis ; antennae picese, 

 ramis longis aequalibus pubescentibus, basi fulvae ; scutum 

 transverse striatum ; scutellum sulco transverso, spinis 

 duabus arcuatis, apice sub-contiguis, abdominis apicem paullo 

 superantibus ; alae cinereae. 



Female. — iEneous-black. Head very short, not near so broad 

 as the thorax ; face longitudinally striated. Antennae black, fili- 

 form, reddish at the tips, not longer than the breadth of the head; 

 scape tawny. Thorax gibbous, very high. Prothorax extremely 

 short. Scutum very large, transversely and finely striated ; sutures 

 of the parapsides slight. Scutellum longitudinally striated, 

 ending in two slightly curved spines, which extend to the tip of 

 the abdomen. Metathorax vertical, much developed, not punc- 

 tured. Petiole very short. Abdomen black, smooth, elliptical, 

 tawny beneath and at the tip, much narrower but not longer than 

 the thorax. Legs pale tawny. Wings limpid ; veins black ; 

 ulna much shorter than the humerus ; radius obsolete. 



Length of the body 2g lines ; of the wings 5 lines. 



Santarem, Discovered by Mr. Bates. In the British 

 Museum. 



Male. — Blackish-aeneous. Head a little broader than the thorax ; 

 face excavated in the disk on each side. Antennse piceous, with 

 long pubescent branches of equal length ; scape tawny, scutum 

 transversely striated ; parapsides smooth, finely striated towards 



c c 2 



