The bloodworm is an imitation of the larval stage of the Chironomid midge or buzzer. Bloodworm spend the majority of their time living in a silty tube. When disturbed they move their bodies from side to side..
Best fished either on a floating line and long leader or sinking/intermediate line near the bottom, using a slow figure of eight retrieve. This is one of the best bloodworm patterns you will find. Best for Trout, Bass, Crappies and also Carp