. Bulletin of the Natural History Museum Entomology. 94 WILLIAMS. Fig. 13 Distribution records and principal colour variation within the trifasciatus-group in Asia (updated from Williams, 1991: fig. 11). The individuals may all be considered parts of a single species, B. trifasciatus, depending on which species-defining criterion is accepted. The dashed line shows the 1000 m contour above sea level and the solid line shows the 4000 m contour. Yellow pubescence is shown on the bees by fine stippling, orange pubescence by coarse stippling, red pubescence by vertical Please note t
. Bulletin of the Natural History Museum Entomology. 94 WILLIAMS. Fig. 13 Distribution records and principal colour variation within the trifasciatus-group in Asia (updated from Williams, 1991: fig. 11). The individuals may all be considered parts of a single species, B. trifasciatus, depending on which species-defining criterion is accepted. The dashed line shows the 1000 m contour above sea level and the solid line shows the 4000 m contour. Yellow pubescence is shown on the bees by fine stippling, orange pubescence by coarse stippling, red pubescence by vertical Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Natural History Museum (London). Andover : Intercept
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