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:''The large emerald is also one of the Twenty Treasures of Zork from the Infocom text adventure Zork I.''
The 'Large Emerald', ''(Geometra papilionaria)'', is a moth, the type specimen for the family Geometridae. It is found throughout the Palearctic region and the Near East.
This is a large and attractive species, as the specific name suggests very butterfly like, with a wingspan of 50-65 mm. Newly emerged adults are bright green with darker green and white fascia, though the green colouration fades after a few days. It flies at night from June to August ^[1] and is attracted to light.
The larva is brown at first, turning green later, and feeds mainly on birch though it has also been recorded on alder, beech, hazel and rowan. The species overwinters as a larva.
1. ''The flight season refers to the British Isles. This may vary in other parts of the range.''

Contents

External link

References

External link

★ Large Emerald at Markku Savela's Lepidoptera pages

References

★ 'Chinery, Michael' ''Collins Guide to the Insects of Britain and Western Europe'' 1986 (Reprinted 1991)

★ 'Skinner, Bernard' ''Colour Identification Guide to Moths of the British Isles'' 1984