Bloodworm (Midge Larva)

Natural Habitat

Stagnant or slow-moving freshwater bodies, often buried in soft sediment or mud at the bottom.

Diet & Feeding

They feed on organic debris, algae, and microorganisms found in the sediment. They are important decomposers in aquatic ecosystems.

Behavior Patterns

The larva builds protective tubes from silk and sediment. The reddish color comes from hemoglobin, which allows them to survive in low-oxygen environments. They eventually pupate and emerge as non-biting midges.

Risks & Benefits

They do not bite or sting and pose no direct risk to humans. They are beneficial as a vital food source for fish and birds, and they help recycle nutrients in aquatic habitats. Occasionally, large hatches of adult midges can be a nuisance.

Identified on: 12/31/2025