176 Mr. F. Walker on some undescribed Species 



bidentate, with a short black longitudinal line. Petiole yellow, less 

 than half the length of the hind coxa?. Abdomen fusiform, much 

 shorter and narrower than the thorax. Hind coxae with black tips ; 

 hind femora incrassated, with large black teeth. Wings cinereous, 

 darker towards the tips ; veins black ; idna about half the leng-th of 

 the humerus ; radius as long as the ulna ; cubitus short. Length of 

 the body 3^ lines ; of the wings 6 lines. 



Female. Scutum with two black lines which are united hindward ; 

 scutellum with a lanceolate black stripe. Petiole very short. Abdo- 

 men lanceolate, much longer than the thorax; segments with black 

 transverse streaks on each side. Length of the body 4i lines ; of the 

 wings 7 lines. 



Santarem. Discovered by Mr. Bates. In the British Museum. 



Smiera congrua. Fcetn. Lutea, glabra, nitens; caput et thorax sci- 

 tissime punctata; antennae nigi'ae, longse, graciles, filiformes, scapo 

 luteo ; thorax punctis duobus lateralibus nigris, scutello bidentato ; 

 abdomen lanceolatum, ferrugineo fasciatum, petiolo breviusculo ; femora 

 postica subdentata ; alae limpidas, sat parvae, venis luteis. 



Female. Luteous, smooth, shining. Head and thorax very finely 

 pmictured. Head oblique in front, face very concave. Antennae 

 black, long, slender, filiform, much longer than the thorax; scape 

 luteous. Thorax with a black point at the base of each fore wing ; 

 scutellum with two very minute teeth. Abdomen lanceolate, slightly 

 compressed, much narrower but hardly longer than the thorax, with a 

 ferruginous band on the fore borders of each segment; dorsal ridge 

 slightly undulating ; petiole less than half the length of the hind coxae. 

 Hind femora incrassated, very minutely dentate. Wings limpid, rather 

 small; veins luteous; idna a little less than half the length of the 

 humerus ; radius a little longer than the tdna ; cubitus short, with a 

 black stigma. Length of the body 3i lines ; of the wings 5 lines. 



Santarem. Discovered by Mr. Bates. In the British Museum. 



Smiera decisa. Mas. Lutea, glabra, nitens ; caput et thorax scitissime 

 punctata ; antennae rufescentes, filiformes, apices versus nigrae ; scutum 

 nigro trivittatum ; scutellum bidentatum, nigro vittatum ; petiolus 

 flavus, longiusculus ; abdomen ovatum, gibbum, nigricante quadrigut- 

 tatimi ; coxae posticae apice nigrae ; femora postica dentata, nigro extus 

 trimaculata; alae cinereae. 



Male. Luteous, smooth, shining. Head and thorax very finely 

 punctured. Head black behind. Antennae reddish, filiform, black 

 towards the tips. Scutum yni\\ a black discal stripe, which is dilated 

 in fi-ont, and with a black oblique stripe on each side; scutellum 

 bidentate, with a black stripe which is dilated hindward. Petiole 

 yellow, slender, fidl half the length of the hind coxae. Abdomen oval, 

 gibbous, mucli shorter and very much narrower than the thorax, with 

 two blackish dots on each ^^ide. Hind coxae with black tips ; hind 



