Cordulegastroidea is a superfamily of Odonata. There are 105 species of Cordulegastroidea, in 7 genera and 3 families. It includes groups like Chlorogomphidae, Neopetaliidae, and Spiketails.
Definition: overall repetitive or reflective pattern in the body of one individual of this taxon. eg: bilateral symmetry, rotational symmetry, radial symmetry
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)