Hippo*bos"can

from The Collaborative International Dictionary of English v.0.48

Hippobosca \Hip`po*bos"ca\, n. [NL., fr. Gr. "i`ppos horse + ?
   to feed.] (Zool.)
   A genus of dipterous insects including the horsefly or horse
   tick. -- {Hip`po*bos"can}, a.
   [1913 Webster]