Orthemis nodiplaga (A–F) and meiotic karyotypes of Orthemis species (G–I) A pachytene B late pachytene C diplotene D diakinesis E prometaphase I F metaphase II G O. discolor (from Fig. 1E) H O. nodiplaga (from Fig. 2E) I O. ambinigra (from Fig. 3H). Arrowheads point X chromosomes. Scale bar: 10 µm.