Nemésio, A. “Eulaema (Apeulaema) felipei sp. N. (Hymenoptera: Apidae: Euglossina): A New Forest-Dependent Orchid Bee Found at the Brink of Extinction in Northeastern Brazil”. Zootaxa, vol. 2424, no. 1, Apr. 2010, pp. 51–62, doi:10.11646/zootaxa.2424.1.3.