See text Dinoponera grandis is a species of ant notable for its lack of distinct queen caste.

In 2021, this species was merged with Dinoponera australis.

[1] Dinoponera australis is divided into three subspecies:[2] Studies have shown that fat storage in this species is related to the division of labour in the colony and non-reproductive individuals are characterized with a lower lipid count than reproductives.

[3] Dinoponera australis has been found to exhibit marked differences in the degree of polyploidy across its tissues, ranging from 2 to 64 copies of the nuclear genome.

This species is found in the department of Santa Cruz in Bolivia, southern Brazil in the states of Mato Grosso, Goiás, Minas Gerais, São Paulo, Mato Grosso do Sul, Paraná, Santa Catarina and Rio Grande do Sul, eastern Paraguay in the departments of Itapúa, Alto Paraná and Guairá, as well as the province of Misiones in Argentina.