The Collaborative International Dictionary of English v.0.48:

Paucity \Pau"ci*ty\ (p[add]"s[i^]*t[y^]), n. [L. paucitas, fr.
   paucus few, little: cf. F. paucit['e] See Few.]
   1. Fewness; smallness of number; scarcity; rarity. --Hooker.
      [1913 Webster]

            Revelation denies it by the stern reserve, the
            paucity, and the incompleteness, of its
            communications.                       --I. Taylor.
      [1913 Webster]

   2. Smallness of quantity; exiguity; insufficiency; as,
      paucity of blood. --Sir T. Browne.
      [1913 Webster] Paugie

WordNet (r) 3.0 (2006):

paucity
    n 1: an insufficient quantity or number [syn: dearth,
         paucity]

Moby Thesaurus II by Grady Ward, 1.0:

29 Moby Thesaurus words for "paucity":
   chinchiness, chintziness, dearth, exiguity, fewness, infrequency,
   insufficiency, meagerness, miserliness, niggardliness, poverty,
   rareness, rarity, restrictedness, scant, scant sufficiency,
   scantiness, scarceness, scarcity, scrimpiness, skimpiness,
   smallness, sparseness, sparsity, stinginess, stringency, thinness,
   tightness, uncommonness