Summary
A key is provided to the known genera of Hypoderid mites living subcutaneously in the hypopial stage in birds. Recent knowledge is summarized of this family of mites, known earlier under the generic names Falculifer and ‘Hypodectes’. Ibisidectes debilis gen. & sp. nov. is described in the hypopial stage, found, with Neottialges eudocimae Pence, in the perimuscular fascial sheath and pectoral muscles of the scarlet ibis (Eudocimus ruber L.).