Tityus pintodarochai is a species of scorpion

Scorpion

Scorpions are predatory arthropod animals of the order Scorpiones within the class Arachnida. They have eight legs and are easily recognized by the pair of grasping claws and the narrow, segmented tail, often carried in a characteristic forward curve over the back, ending with a venomous stinger...

 belonging to the family Buthidae

Buthidae

Buthidae is the largest family of scorpions, containing about 80 genera and over 800 species as of mid-2008. Its members are known as, for example, thick-tailed scorpions and bark scorpions. There are a few very large genera , but also a high number of species-poor or monotypic ones...

. It is presently only known from a single female collected in Paraná

Paraná (state)

Paraná is one of the states of Brazil, located in the South of the country, bordered on the north by São Paulo state, on the east by the Atlantic Ocean, on the south by Santa Catarina state and the Misiones Province of Argentina, and on the west by Mato Grosso do Sul and the republic of Paraguay,...

 state, Brazil

Brazil

Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

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This is a medium-sized scorpion with a total length of around 50 mm. It is generally yellowish in colour, turning reddish towards the end of the tail. It can be distinguished from the widespread Tityus serrulatus

Tityus serrulatus

Tityus serrulatus, the Brazilian yellow scorpion, is a species of scorpion belonging to the family Buthidae. It is native to Brazil and its venom is extremely toxic. It is considered the most dangerous scorpion in Brazil, and has been known to cause deaths in children. It is usually parthenogenetic....

by its lack of dark spots on the abdomen.