• Webster's Revised Unabridged Dictionary
    • n Fidia (Zoöl) A genus of small beetles, of which one species (the grapevine Fidia, F. longipes) is very injurious to vines in America.
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Century Dictionary and Cyclopedia
    • n fidia A genus of Chrysomelidæ or leaf-beetles. The prothorax is cylindrical, not margined at the sides; there are distinct postocular lobes; the prosternal sutures are obsolete; and the femora are not toothed. A few species inhabit North America. F. viticida (Walsh) is about 6 millimeters long, chestnut-brown, and densely covered with short whitish hair; it is very injurious to grape-vines, upon the foliage of which it feeds.
    • n fidia A member of this grenus.
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Webster's Revised Unabridged Dictionary
NL., prob. fr. L. fidus, trusty


In literature:

Fidia, the grape root-worm, was found in the vineyards early in the life of the vines and did much damage in some years.
"Manual of American Grape-Growing" by U. P. Hedrick

In science:

Substituting α to f in (4) yields the second identity in i fiDia = Df a + ∆(f ), which shows Γ (a) in (1) to be minimum for a = ¯xf in the identity case ϕ(D) = D - an elementary result.
Robust Estimation through Schoenberg transformations