FIGURES 150‒151 in The arctic and alpine bumblebees of the subgenus Alpinobombus revised from integrative assessment of species' gene coalescents and morphology (Hymenoptera, Apidae, Bombus)

FIGURES 150‒151. Maps of (150) specimen richness and (151) species richness for the subgenus Alpinobombus among equalarea grid cells recorded from 4450 geo-referenced specimens in the database. The grid is based on longitudinal intervals of 10°, which are used to calculate graduated latitudinal intervals to provide equal-area cells (each cell of area approximately 611,000 km²). Grey scale (right) with equal-frequency richness classes, maximum value in a separate class. Cylindrical orthomorphic equal-area projection (excluding Antarctica) with north at the top of the map.