The Collaborative International Dictionary of English v.0.48:

Sciniph \Scin"iph\, n. [L. scinifes, cinifes, or ciniphes, pl.,
   Gr. ?.]
   Some kind of stinging or biting insect, as a flea, a gnat, a
   sandfly, or the like. --Ex. viii. 17 (Douay version).
   [1913 Webster]