Nygma

Spots on the wings of certain insects

This article is about the entomological term. For the alias of a fictional character, see Riddler. For the wrestler, see Nygma (wrestler).

Thyridosmylus fuscomarginatus forewing
nygmata marked with "ng"

A nygma (plural nygmata) is a spot on the wings of certain insects which have a peculiar dense cuticular structure. They are found only in the wings of endopterygotes but found only in some insect groups. Nygmata are found in caddisflies, scorpionflies, saw-flies and in some families of Neuroptera (e.g. Megaloptera and Ithonidae). The function of nygmata are unknown: they do not connect with nerves or glands. They are typically circular. They never occur on the veins and veins always appear to branch around them. Nygmata show up even in fossil Osmylidae from China. The positions and structure of nygmata are often used in the descriptions of insect species that bear them.[1][2]

## References

[edit]

1. ^ Stocks, Ian (2008). "Nygma (pl. Nygmata)". In Capinera, John L. (ed.). Encyclopedia of Entomology. Volume 4 (2 ed.). Springer. pp. 2655–2658.
2. ^ Forbes, W.T. (1924). "The occurrence of nygmata in the wings of Insecta Holometabola". Entomol. News. 35: 230–233.

This insect anatomy–related article is a stub. You can help Wikipedia by expanding it.

|

* v
* t
* e

*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template