1.
Owen RE, Whidden TL. Discrimination of the bumble bee species Bombus occidentalis Greene and B. terricola Kirby by morphometric, colour and RAPD variation. Zootaxa [Internet]. 2013 Jan. 22 [cited 2025 Jul. 5];3608(5):328–344. Available from: https://www.mapress.com/zt/article/view/zootaxa.3608.5.2