[1]
Ornosa, C., Torres, F. and Rúa, P.D.L. 2017. Updated list of bumblebees (Hymenoptera: Apidae) from the Spanish Pyrenees with notes on their decline and conservation status . Zootaxa. 4237, 1 (Feb. 2017), 41–77. DOI:https://doi.org/10.11646/zootaxa.4237.1.3.