Boroff’s Annewormimitates small worms or midge/chironomid larva (bloodworms) in rivers or lakes. Running about 1/2 an inch in length, Boroff’s Anneworm is slender throughout with a bright red body. Small bloodworm patterns like this can bevery effective on many lakes in early spring and Boroff’s Anneworm would be just the ticket. Tied on a size 16 hook.