podurae

from The Collaborative International Dictionary of English v.0.48
Podura \Po*du"ra\, n.; pl. L. {Podur[ae]}, E. {Poduras}. [NL.;
   Gr. poy`s, podo`s, foot + ? tail.]
   Any small leaping thysanurous insect of the genus {Podura}
   and related genera; a springtail.
   [1913 Webster]

   {Podura scale} (Zool.), one of the minute scales with which
      the body of a podura is covered. They are used as test
      objects for the microscope.
      [1913 Webster]
    

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