part of capable of part of tarsal segment 4 prothoracic leg tarsal taste bristle 4c 2019-02-12T15:00:00Z m4c VFB:FBbt_00048180 FBbt:00048180 Tm4c fly_anatomy.ontology f4c Short taste bristle of tarsal segment 4 of the prothoracic leg. It is located distally on the ventral tarsal segment 4. One is found on the lateral side of the leg. It can respond to some bitter compounds, but not sugars. prothoracic leg tarsal taste bristle detection of chemical stimulus involved in sensory perception of bitter taste