vespertiliones

from The Collaborative International Dictionary of English v.0.48

Vespertiliones \Ves`per*til`i*o"nes\, n. pl. [NL.] (Zool.)
   A tribe of bats including the common insectivorous bats of
   America and Europe, belonging to {Vespertilio} and allied
   genera. They lack a nose membrane.
   [1913 Webster]