(en) T. D. A. Cockerell, « Fossil Hymenoptera from Florissant, Colorado. », Bulletin of the Museum of Comparative Zoology, vol. 50, , p. 33–58 (lire en ligne)
ufrgs.br
Sühs, R.B.; Somavilla, A.; Putzke, J.; Köhler, A. (2009). Pollen vector wasps (Hymenoptera, Vespidae) of Schinus terebinthifolius Raddi (Anacardiaceae), Santa Cruz do Sul, RS, Brazil. Brazilian Journal of Biosciences 7(2):138-143. Link: http://www.ufrgs.br/seerbio/ojs/index.php/rbb/article/view/1123
