180 Mr. F. Walker on some undescribed Species 



Smieba melanoptera. 3Ias. Lutea, glabra, nitens ; caput et thorax 

 subpunctata ; caput nio;i'um ; antenupe nigrae, filifonnes, scapo luteo ; 

 scutum disco punctisque duobus nigris ; scutellum bidentatum, gutta 

 basali iiigTa ; petiolus longissimus ; abdomen longi-ovatum, dimidio 

 apicali supra uigTO ; coxaj posticte apice nigi-o strigatje ; femora postica 

 subdentata, basi subtus nigro notata ; alse nigrpe, apices versus cinerese. 



Male. Luteous, smooth, shining. Head and thorax minutely pimc- 

 tured. Head black. Antennae black, filifomi ; scape luteous. Scutum 

 with a black disk, and with a black point on the hind border of each 

 of the parapsides ; scutellum with a black dot on the base, and with 

 two minute teeth. Abdomen elongate, oval, hardly longer than the 

 very long petiole ; apical half black above. Hind coxaj very long, with 

 a black apical streak on the outer side ; hind femora much incrassated, 

 minutely dentate, with a black mark near the base beneath. Wings 

 black, cinereous towards the tips and along most of the hind border ; 

 veins black ; ulna a little more than half the length of the humerus ; 

 radius a little shorter than the ulna ; cubitus very short. Length of 

 the body 31 lines ; of the wings 6 lines. 



Venezuela. Discovered by Mr. Dyson. In the British Museum. 



Smxera discolor. Fcem. Nigra, glabra, nitens ; caput et thorax sub- 

 pmictata ; antennae filiformes, sat robustae ; prothorax postice flavo 

 margiuatus; mesothorax liavo quadrinotatus, scutello inermi, meta- 

 thorace scabro ; abdomen longi-ovatum, basi sordide flavescens, petiolo 

 brevissimo ; pedes albido-flavi, femoi'ibus posticis nigris subdentatis 

 flavo fasciatis, tibiis posticis nigris ; alae cinereae, subluridescentes. 



Fe7nalc. Black, smooth, shining. Head and thorax minutely pimc- 

 tured. Antennae filiform, rather stout. Prothorax with a yellow band 

 on its hind border. Scutum with two yellow streaks along the sutures 

 of the parapsides ; scutellimi imarmed, with two yellow oblique oblong 

 spots which are almost connected hindward ; metathorax largely sca- 

 brous, with a yellowish spot on each side. Abdomen elongate-oval, 

 narrower and a little shorter than the thorax, dingy yellowish towards 

 the base; petiole very short. Legs whitish-yellow; hind femora 

 black, much incrassated, very minutely dentate beneath, with a broad 

 irregular yeUow band towards the tips ; hind tibiae black. Wings 

 cinereous, with a slight lurid tinge ; veins black ; ulna less than half 

 the length of the humerus ; radius a little longer than the ulna ; 

 cubitus short. Length of the body 3 lines ; of the wings 6 lines. 

 St. Paulo. Discovered by Mr. Bates. In the British Museum. 



Smxera nebulosa. Fam. Fulva, glabra, nitens ; caput et thorax sub- 

 punctata ; antennae piceae, filiformes, apice fulvae ; scutelliun inerme ; 

 metathorax flavescens ; abdomen ovatum, acuminatum, subcompressum, 

 petiolo longo flavescente ; femora postica subdentata ; alae longiusculae ; 

 anticae cinereae, margine exteriore subnigricante, vitta costali nigri- 

 cante ; posticae subnigricantes, vitta discali cinerea. 



Female. Tawny, smooth, shining. Head and thorax very minutely 



