The nest of Bombus jonellus in the Solovetsky Islands: (A) Excavated nest; (B) Excavated nest and its size. Scale bar = 10 mm; (C) Excavated nest with larvae; (D) Queen, workers and male of B. jonellus, which was found in the nest and caught near it; (E) Location of the nest, birch forest in the Pechak Cape. Photos: Yulia Kolosova

  Part of: Potapov GS, Kolosova YuS (2020) Bombus (Pyrobombus) jonellus (Kirby, 1802) in the north-western Russian Plain: its distribution and ecology. Arctic Environmental Research 20(1): 1-9.