Figures 104, 105 in The bumblebees of the subgenus Subterraneobombus: integrating evidence from morphology and DNA barcodes (Hymenoptera, Apidae, Bombus)

Figures 104, 105. Global distribution of (104) numbers of specimens examined and (105) numbers of species recognized for Subterraneobombus among equal-area grid cells (grey scale at right; from georeferenced 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 approximately represents 611 000 km2). The grey scale is used to group the counts (numbers on map) into six classes. The maximum count is shown in black, and otherwise counts are divided into five classes of approximately equal size by numbers of grid cells. Cylindrical equal-area projection, with north at the top of the map.