| apis cerana japonica discriminates between floral color phases of the oriental orchid, cymbidium floribundum. | foragers of the japanese honeybee (apis cerana japonica) were attracted by flowers of an oriental orchid (cymbidium floribundum) and were observed to carry the pollinia on their scutella. after the removal of pollinia from the flowers, their labial color changed from white to reddish brown. both artificial removal of pollinia and ethrel treatment of the flowers also induced this labial color change. labia in color-changed flowers showed a decreased reflectance of wavelengths less than 670 nm com ... | 2010 | 21110714 |