#haltere__halter__balancer  either of the club-like rudimentary hind wings of dipterous insects; used for maintaining equilibrium during flight
  supertype:  wing  a movable organ for flying (one of a pair)
  part of:  dipterous_insect__dipterousinsect__two-winged_insects__dipteran__dipteron  insects having usually a single pair of functional wings (anterior pair) with the posterior pair reduced to small knobbed structures and mouth parts adapted for sucking or lapping or piercing

No statement uses or specializes haltere; click here to add one.