Shebl, Mohamed. “Nesting Biology and Seasonality of Long-Horned Bee Eucera Nigrilabris Lepeletier (Hymenoptera, Apidae)”. Sociobiology 63, no. 4 (December 29, 2016): 1031–1037. Accessed July 7, 2026. https://periodicos.uefs.br/index.php/sociobiology/article/view/1181.