Most Venomous Scorpions in the World

Vietnam Forest Scorpion Although not deadly, the Vietnam forest, Heterometrus laoticus, is a type of scorpion that tend to be pretty aggressive, thus dangerous. The LD50 of Vietnam Forest scorpion is around 12 mg/kg with intravenous injection. 

Tanzanian Red-Clawed Scorpion Scientifically known as Pandinus cavimanus, Tanzanian red-clawed scorpions are considered to be among the most dangerous scorpions in the world. Visually, they resemble the Emperor scorpions, however, unlike them, the Pandinus cavimanus are more aggressive and highly likable to sting.

Indian Red Scorpion Indian red scorpions, Hottentotta tamulus, are among the most venomous scorpions in the world. These scorpion species are found in the areas of Nepal and India and have significant importance in local medicine.

Arizona Bark Scorpion Arizona Bark scorpions, Centruroides sculpturatus, are among the deadliest scorpions on Earth. They are typically found in North America, more specifically in the southwestern states and northern parts of Mexico.

Rough Thicktail Scorpion Rough thicktail scorpions, Parabuthus granulatus, are considered to be among the most dangerous scorpions in the world. The LD50 for these scorpions, when tested on mice, was 1.56 mg/kg. Their venom is among the most important venoms that are used in medicine. 

Brazilian Yellow Scorpion Brazilian yellow, Tityus serrulatus, belongs to the family of Buthidae. The LD50 of this dangerous species of scorpion is 0.43 mg/kg. Venom can attack the muscular and nervous systems and even suppress the immune system.

Arabian Fat-Tailed Scorpion Arabian fat-tailed scorpions, Androctonus crassicauda, are found in Saudi Arabia, Iran, Turkey, Kuwait, Qatar, Iran, and North Africa. The venom of these medium-sized scorpions consists of cardiotoxins, myotoxins, and neurotoxins. Therefore, this makes them one of the most venomous scorpions in the world, with an LD50 of 0.40 mg/kg.

Yellow Fat-Tailed Scorpion Yellow fat-tailed scorpions, Androctonus australis, are high on the list of the deadliest scorpions in the world. These lethal scorpions like desert, dry and hot areas and are typically found in the arid regions of North Africa and Southeast Asia. 

Deathstalker Scorpion Scientifically also known as Leiurus quinquestriatus, the deathstalker is the most venomous scorpion in the world. When tested on mice, the LD50 of the deathstalker was 0.25 mg/kg. Those arachnids have even been reported in Guinness World Records as the deadliest scorpions. Still, most healthy adult patients survive their painful sting.