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| Mantell Paun / Glöyn iâr fach lygadog / Y Paenog Peacock
(Inachis
io) Cyffredin yng gerddi Cymru ac Iwerddon ec eithrio'r gogledd. Oedolyn yn hedfan rhwng Gorffennaf a Medi, ac yn y gwanwyn ar ôl gaeafgysgu. Glöyn byw sy'n perthyn i urdd y Lepidoptera yw mantell paun, sy'n enw benywaidd; yr enw lluosog ydy mentyll peunod; yr enw Saesneg yw Peacock (neu European peacock), a'r enw gwyddonol yw Inachis io. Peunog (hefyd Y Peunog) yw enw arall arni. Fe'i canfyddir yn Ewrop a rhannau o Asia ac mor bell a Japan. Dyma'r unig aelod o'r genws Inachis. Daw'r gair o fytholeg Roeg a'i ystyr yw Io, ferch Inachus. Mae'n glöyn llwyddiannus iawn a'r niferoedd yn cynyddu. A very successful species capable of surviving even in sheep rearing districts provided that some nettle patches are tolerated and thistles and/or other flowers are available for nectaring. Both nettles and thistles are resistant to sheep grazing but are intensely disliked by farmers and are becoming less frequent due to the widespread use of herbicides. The adult Peacock has an exceptionally long life for a butterfly. Having emerged from the pupa in late summer, the butterflies feed for the rest of the year, hibernate, and then lay their eggs the following spring. Some individuals live on, looking increasingly dowdy, as late as mid June. Thus, some adults may survive for almost a full year. The larvae are gregarious and are highly conspicuous on their nettle patches.
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