Bloodworm (Midge Fly Larva)

Natural Habitat

Found primarily in aquatic environments like pond bottoms, streams, and stagnant water, but occasionally found in damp soil or brought indoors via water sources.

Diet & Feeding

Detritivores; they feed on organic debris, algae, and microorganisms found in sediment.

Behavior Patterns

They are the larval stage of the non-biting midge fly. They often wiggle in a figure-eight motion when swimming. The red color comes from hemoglobin, allowing them to survive in low-oxygen environments.

Risks & Benefits

Generally harmless to humans (no biting or stinging). They are a crucial food source for fish and aquatic animals. However, some people may develop allergic reactions to the proteins in dried larvae used as fish food.

Identified on: 2/28/2026