MONTEZUMIA. 125 



one, but having the same form as in morosa and marked with a 

 subapical sulcosity. 



Jnsect black, furnished with a short grayish pubescence. Post- 

 scutel, metathorax, and first abdominal segment sulphur-yellow; 

 the latter margined with a black band. Tarsi furnished with a 

 golden-silky pile having a brownish reflection ; tibial spines rufous. 

 Wings dark fuscous with dark violet iridescence ; the apex paler. 



Hab. Santa-Martha. Antilles. 



19. M. Platensis. 



Monttzumia platinia Sadss. Vesp., I, 92, 9 ; pl.xv, fig. 3, J . 



Hab. La Plata. 



20. M. a Sleeps Sauss. — M. morosa affinis, at corpore paulo magis 

 tenuiter punctalo ; clypeo longiore, minus rugoso, apiee truncato, bian- 

 gulato ; thorace paulo breviore; pronoto angulato; mesonoto breviore, 

 metanoto minus obliquo ; alis apiee et postice pellucidis, basi et iu costa 

 nigris. 9 • 



Variat. Priuio segmento utrinque lineola submargiuali fulva. 



Total length, 15 mm. ; wing, 12 mm. 

 Montezumia anceps Sauss. Vespides, I, 92, 8 (It 52). 



Much resembles M. morosa, but in this the clypeus is in form 

 of a short and wide pear and terminates in a point, parted by a 

 little notch ; in 31. anceps it is more lengthened, truncate, and 

 bicarinate, the carina? forming a tooth on each side of the little 

 inferior border. The wings are hyaline with the costa up to the 

 stigma dark-brown, this color very soon becuming faint; the 

 second cubital cell is also less contracted in 11. anceps, which is 

 also a smaller species. 

 ■ Hab. South America. Rio Janeiro. 



21. M. Aztfeca n. sp. (Fig. 10, 10«.) — Viridi-ccerulea, cinereo-sericea ; 

 capite et thorace valde punctatis ; abdomine punctulato, nigro; alis 

 fusco-violaceis. 



% . Clypeo infere fulvo-binotato, margine truncato subbidentato ; anten- 

 narum articulo ultimo deplanato, ferrugineo. 



Total length, 20 mm. ; wing, 14 mm. 



%. Head short, the width of thorax. Thora*x long, neither re- 

 tracted before nor behind. Prothorax sharply truncate, rimmed, 



