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New World Screwworm Fly (Cochliomyia hominivorax)
Deadly
92Six Legs
Bug Bite · From the file on New World Screwworm Fly

Screwworm larvae burrow INTO living tissue of cattle, horses, deer, and other warm-blooded animals — feeding on the flesh until the untreated host dies in 7-14 days.

AgencyUSDA Agricultural Research ServiceVerified by sources
Read the full file on New World Screwworm Fly

More Deadly bites

Eciton Army Ant (Eciton burchellii)
Deadly
Six Legs81

An Eciton burchellii raid can carry off 30,000+ arthropods in a single day — they're top-tier predators of the rainforest floor.

Eciton Army AntVerified by sources
Asian Giant Hornet (Vespa mandarinia)
Deadly
Six Legs86

A raid party of 20–30 Asian giant hornets can decapitate an entire honeybee colony of 30,000 bees in under three hours.

Asian Giant HornetVerified by sources
Asian Giant Hornet (Vespa mandarinia)
Deadly
Six Legs86

Justin Schmidt's pain index rates the Asian giant hornet's sting as 'like having a hot nail driven into your leg.'

Asian Giant HornetVerified by sources
Bullet Ant (Paraponera clavata)
Deadly
Six Legs92

The bullet ant scores 4.0+ on the Schmidt Sting Pain Index — the highest rating ever recorded — and the pain reportedly lasts a full 24 hours.

Bullet AntVerified by sources
Bullet Ant (Paraponera clavata)
Deadly
Six Legs92

The name 'bullet ant' comes from the universal report of victims: it feels like being shot.

Bullet AntVerified by sources
Deathstalker Scorpion (Leiurus quinquestriatus)
Deadly
Six Legs87

The deathstalker is one of the deadliest scorpions on Earth — historic mortality rates in untreated children exceeded 25%.

Deathstalker ScorpionVerified by sources