vespertilio altivolans

from The Collaborative International Dictionary of English v.0.48

Noctule \Noc"tule\ (?; 135), n. [F., fr. L. noctua a night owl,
   fr. nox, noctis, night.] (Zool.)
   A large European bat ({Vespertilio altivolans} syn.
   {Noctulina altivolans}).
   [1913 Webster]