Silveira, Orlando Tobias. “ Surveying Neotropical Social Wasps: An Evaluation of Methods in the ‘Ferreira Penna’ Research Station (ECFPn), in Caxiuanã, PA, Brazil (Hym., Vespidae, Polistinae) ”. Papéis Avulsos de Zoologia 42, no. 12 (November 1, 2002): 299–323. Accessed May 3, 2024. https://www.revistas.usp.br/paz/article/view/33615.