The Collaborative International Dictionary of English v.0.48:

Pseudotetramera \Pseu`do*te*tram"e*ra\, n. pl. [NL. See
   Pseudo-, and Tetramerous.] (Zool.)
   A division of beetles having the fifth tarsal joint minute
   and obscure, so that there appear to be but four joints. --
   Pseu`do*te*tram"er*al, a.
   [1913 Webster]