\Dy*nas"ti*dan\, n. [Gr. ?, fem. of ?. See {Dynast}.
The name alludes to the immense size of some species.]
(Zo["o]l.)
One of a group of gigantic, horned beetles, including
{Dynastus Neptunus}, and the Hercules beetle ({D. Hercules})
of tropical America, which grow to be six inches in length.