FIGURE 4 in Generic delimitation between Fragariocoptes and Sierraphytoptus (Acari: Eriophyoidea: Phytoptidae) and a supplementary description of Fragariocoptes gansuensis with remarks on searching for mummified eriophyoid mites in herbaria under UV light

FIGURE 4. Images showing the same mummy of Fragariocoptes gansuensis under white light (A) and ultraviolet light with wavelength 395 nm (B) and 365 nm (C). Scale bar = 200 µm. Note: brightness and contrast have not been digitally adjusted, so the images correctly indicate the observed differences; same focus and adjustments of video camera in all three images.