Main Page | See live article | Alphabetical index In biology, a nymph is the immature form of some insect species (e.g. among the locusts, cicadas, mayflies, termites, crickets, grasshoppers, cockroaches, mantids, and dragonflies) that underwent incomplete metamorphosis. It is not to be confused with a larva, as its overall form is already that of the adult. This article is a stub. You can help Wikipedia by fixing it. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.