]20 HTMENOPTERA OF AMERICA. [PART T. 



capite, me=onoto, abdominis segmentis 20-70 ) nigris ; pedibus, pronoto, 



scutellis tegulis et pleuris, raetauoto et abdominis 1° segraento, rufis, 



anreo-velutinis ; frequenter pronoti margiue postico, tegulis partita, 



metanoti maculis 2 et canthis, primique segmeuti margiue, flavis ; alia 



fusco-violascentibus, costa nigra, apice pallidiore. 

 %. Clypeo punctulato polygonali, fere latiore qnam longiore, late exciso ; 



macula genarum flava ; antennarum uncino et scapo subtus, ferrugineis. 

 Variat. a. Clypeo flavo-maculato. 



h. Abdomine omnino nigrescente, apice fere ferrugineo. 

 ( . Mesonoti disco ferrugirieo-bilineato ; 1° abd. segmento fascia flava 



interrupta. 



Montezumia Spinola Sacss. Et. Vesp. I, 93, 12; pi. xii, fig. 9, 9 var. 

 (1852). 



Odgnerus inf. malts Spinola, Mem. Acad. Turin, XIII, 11-53, 84, 64, %. 



Montezumia infernalis Saoss. Et. Vespides, III, 162, 52. 



Total length, 16-18 mm. ; wing, 14-15 mm. 



Strongly and densely punctured. Front a little channelled 

 transversely above the antennae, vertex a little swelled behind in 

 a transverse pad. Prothorax angulate, truncate before, following 

 a slightly concave trenchant line. Clypeus and post-scutel 

 divided by a groove. Metathorax short, vertically wide, rugose, 

 punctured and velvety ; its concavity almost in the form of an 

 angle, plane, a little bordered at summit. First abdominal seg- 

 menl campanular subsessile, finely punctured, with a groove 

 above toward the extremity. The 2d segment notably more 

 enlarged, with scarce punctures clothed with a velvety pile, as if 

 striolate. The other segments densely and finely punctured. 



Black; labrum very long, ferruginous; a little yellow line bor- 

 dering the eyes below and another upon the scape of the antennae, 

 %. Thorax of a velvety ferruginous; disk of the mesothorax 

 black; prothorax and Hanks brownish, with the borders of the 

 first and some spots on the second reddish ; wing scales spotted 

 with yellow; post-scutel adorned with a yellow line; metathorax 

 having some silky golden-yellow reflections and two yellow spots 

 upon the summit. First segment red, with a yellow border. 

 Legs ferruginous, with golden reflections. Wings of a black 

 violaceous, with the extremity more pale. (Surinam.) 



The color of the thorax varies very much, from ferruginous to 

 nli-cure brownish. The border of prothorax and the sides of the 

 thorax under the wing, ornamented with yellow. 



