Kneallhazia carolinensae sp. nov., a microsporidian pathogen of the thief ant, Solenopsis carolinensis

► A new species of microsporidia was discovered from the thief ant, Solenopsis carolinensis. ► Kneallhazia carolinensae represents the second species in the genus Kneallhazia. ► Morphological and molecular data place Kneallhazia carolinensae in the Kneallhazia genus.