# Morpho didius

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***Morpho didius***, the **metallic blue morpho**, is a [Neotropical](/source/Neotropical) butterfly belonging to the subfamily [Morphinae](/source/Morphinae) of family [Nymphalidae](/source/Nymphalidae). It is considered, by some authors, to be a [subspecies](/source/Subspecies) of *[Morpho menelaus](/source/Morpho_menelaus)*.

## Description

*Morpho didius* has a [wingspan](/source/Wingspan) reaching 150 millimetres (5.9 in), making it one of the largest of *Morpho* species. The dorsal side of the wings are iridescent and metallic blue, and the forewings are quite elongated.

## Distribution

This species can be found in [Peru](/source/Peru).

## Biology

The [larva](/source/Caterpillar) feeds on [palm trees](/source/Palm_tree).

## References

- [BioLib.cz](https://www.biolib.cz/en/taxon/id405144/)
- ["*Morpho* Fabricius, 1807"](https://ftp.funet.fi/pub/sci/bio/life/insecta/lepidoptera/ditrysia/papilionoidea/nymphalidae/morphinae/morpho/) at Markku Savela's *Lepidoptera and Some Other Life Forms*
- [Butterflies of America](http://www.butterfliesofamerica.com/L/t/Morpho_menelaus_didius_a.htm) Images of [type](/source/Holotype) and other specimens of *Morpho menelaus didius*.
- Paul Smart, 1976 *The Illustrated Encyclopedia of the Butterfly World in Color*. London, Salamander: *Encyclopedie des papillons*. Lausanne, Elsevier Sequoia (French language edition) ISBN 9780948427046 ISBN 0600313816 page 235 fig. 7 female (Peru)

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Adapted from the Wikipedia article [Morpho didius](https://en.wikipedia.org/wiki/Morpho_didius) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Morpho_didius?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.