Odontomachus hastatus is a species of ant from the complex Odontomachus hastatus, The species was originally described by Johan Christian Fabricius in 1804.
Like other species of Odontomachus ants, the O. hastatus are easily recognised by their trap-like jaw, which with they catch and kill prey.
The range of O. hastatus covers the rainforests of Central and South America. This is confirmed in recent observations through crowdsourcing initiatives