Old World Screwworm vs Tumbu Fly

Side-by-side species comparison

Attribute Old World Screwworm Tumbu Fly
Scientific Name Chrysomya bezziana Cordylobia anthropophaga
Order Diptera Diptera
Family Calliphoridae Calliphoridae
Size 8-11 mm 9-12 mm
Habitat Forests Indoors
Diet Parasites Omnivores
Regions Sub-Saharan Africa, South Asia, Southeast Asia Sub-Saharan Africa
Conservation Least Concern Least Concern

Old World Screwworm

An obligate wound parasite of mammals found across Africa and Asia. Larvae invade wounds and feed on living tissue causing severe myiasis.

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Did You Know?

Unlike the New World screwworm, no sterile insect program has yet successfully eradicated this species.

Tumbu Fly

An African blow fly whose larvae cause furuncular myiasis in humans and animals. Females lay eggs on soil or clothing hung out to dry.

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Did You Know?

Ironing clothes thoroughly after drying them outdoors kills the eggs and prevents skin infestation.