Fig. 2. Hemolymph flow in scent pads.
a Photo of a male white-M hairstreak, Parrhasius m-album. b Photo showing the scent pad of P. m-album, an associated “wing heart”, and the observed pattern of hemocyte flow in the scent pad. c Photo of a male hickory hairstreak, Satyrium caryaevorus. d Photo showing the scent pad of S. caryaevorus, an associated “wing heart”, and observed pattern of hemocyte flow in the scent pad. e Observed average hemocyte flow speed as a function of time in the scent pad of S. caryaevorus. Supplementary Movies 4, 5 show the beating of the wing heart and movement of hemocytes within the scent pad of P. m-album. Supplementary Movies 6, 7 show the movement of hemocytes within the scent pad of S. caryaevorus. Source data are provided as a Source Data file.