FIGURES 148‒149 in The arctic and alpine bumblebees of the subgenus Alpinobombus revised from integrative assessment of species' gene coalescents and morphology (Hymenoptera, Apidae, Bombus)

FIGURES 148‒149. Anterior / left lateral aspect of the lower part of the clypeus, the labrum, and the mandibles of males of: (148) B. neoboreus (#4867), showing the small orange hair patches at the base of the mandibles and the long dense posterior fringing black beard; (149) B. kluanensis (#4876), showing the large dense orange hair pads on the mandibles and the sparse orange hairs in the posterior fringing beard.