Thank you all

[Alexandre Aguiar]

Thanks much to everyone who helped with the  "Chapada Mistery".

Follows a summary of the info I got:

Chapada (now Chapada dos Guimaraes), Mato Grosso, Brazil - 15o26' S, 57o39' W

The reference mentioned by Darren is:

Carpenter & van der Vecht. 1991. A study of the Vespidae described by
William J. Fox (Insecta: Hymenoptera), with assessment of taxonomic
implications. Annals of Carnegie Museum 60(3): 211-241.

Happy New Year!