Pentodon idiota: 20,XY (Fig. 2A)

Published data: Dutrillaux & Dutrillaux (2012). The size of the meta-/sub-metacentric autosomes is progressively decreasing, but there is a hiatus between pairs 2 and 3 and 5 and 6. The X is a small acrocentric and the Y is a very small punctiform, which can be easily missed. C-banding is very discrete. NOR location: X chromosome.