Hercules beetle

Hercules \Her"cu*les\, n.
   1. (Gr. Myth.) A hero, fabled to have been the son of Jupiter
      and Alcmena, and celebrated for great strength, esp. for
      the accomplishment of his twelve great tasks or "labors."
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   2. (Astron.) A constellation in the northern hemisphere, near
      Lyra.
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   {Hercules' beetle} (Zool.), any species of {Dynastes}, an
      American genus of very large lamellicorn beetles, esp.
      {Dynastes hercules} of South America, which grows to a
      length of six inches.

   {Hercules powder}, an explosive containing nitroglycerin; --
      used for blasting.
      [1913 Webster] Hercules'-club
      Hercules'-club
    

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