linguistic:paraphrasing, information:highlighting
Species

The genus Solenopsis contains over 200 species. Not all species included in the genus are known as fire ants, but most are small slow-moving ants which are unable to sting, called thief ants. "True" fire ants are but a group of about 20 species of Solenopsis which are larger, and will viciously sting in swarms whenever disturbed. Some of the most studied species include: