Neogregarinorida (Neogregarines) is an order of alveolates. There are 5 species of Neogregarines, in 5 genera and 3 families. It includes groups like Syncystidae, Lipotrophidae, and Ophryocystidae.
Definition: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)