MONTEZUMIA. 125 



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

 Bubapical sulcosity. 



Insect 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 witli dark violet iridescence ; the apex paler. 



Bab. Santa-Martha. Antilles. 



19. M. Platensis. 



Montizumia platinia Sauss. Vesp., I, 92, 9; pl.xv, fig. 3, J. 



Bab. La Plata. 



2©. M. ancejps Sauss. — M. morosre affiuis, at corpore paulo magis 

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

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

 metanoto minus obliqao ; alis apice et postice pellueidis, basi et in costa 

 nigris. 9. 



Varied. Primo segmento utrinque lineola submarginali fulva. 



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

 Moidezumia anceps Sauss. Vespides, I, 92, 8 (1S52). 



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 M. dnceps it is more lengthened, truncate, and 

 bicarinatc, the carina) forming a tooth on each side of the little 

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

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

 second cubital cell is also less contracted in 31. anceps, which is 

 also a smaller species. 

 . Ilab. South America. Rio Janeiro. 



21. M. Aztfcca n. sp. (Fig. 10, 10a.) — Viridi-coernlea, oinereo-sericea ; 



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



fuseo-violaceis. 

 % . Clypeo iufeie fulvo-binotato, margine truncato Sllbbidentato J anten- 



nannn articulo ultimo deplanato, ferrugineo. 



Total length, 20 nun. ; wing, 1-1 mm. 



%. Head short, the width of thorax. Thorax long, neither re- 

 tracted before nor behind. Prothorax sharply truncate, rinuned, 



