Tunga penetrans (Chigoe flea)

Scientific Name: Tunga penetrans

Order & Family: Order: Siphonaptera, Family: Tungidae

Size: 1 mm (unfed) to 10 mm or more (engorged female)

Tunga penetrans (Chigoe flea)

Natural Habitat

Sandy soil, dust, or dirt in tropical and subtropical regions worldwide, particularly in sub-Saharan Africa, Latin America, and the Caribbean.

Diet & Feeding

Hematophagous (blood-feeding). The female embeds itself in the host's skin to feed on blood while producing eggs.

Behavior Patterns

Unlike most fleas, the female burrows into the skin of the host (usually the feet). She swells significantly as she produces hundreds of eggs, which are eventually released into the environment.

Risks & Benefits

Causes tungiasis, a painful skin infestation that can lead to secondary infections, gangrene, and physical impairment if left untreated. There are no known benefits to the ecosystem.

Identified on: 2/3/2026