(Top) Spectroscopic completeness of WISE-detected (>3σ) galaxies with 0.0089 < z _phot < 0.0599 at 22 μm (left) and at 12 μm (right). Blue and red curves are the completeness computed for the galaxies brighter than the SDSS limit and for all the galaxies including those fainter than the limit, respectively. (Bottom) WISE photometric completeness for the A2199 supercluster region with a mean coverage depth of ~21 at 22 μm (left) and 12 μm (right). Vertical dashed lines indicate 3σ flux limits (3.6 and 0.6 mJy for 22 and 12 μm, respectively).