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Pontia edusa : ウィキペディア英語版 | Pontia edusa
The Eastern Bath White ''(Pontia edusa)'' is a butterfly in the family Pieridae. ==Description== ''Pontia edusa'' is a small to medium-sized migrant butterfly, with a wingspan reaching about 45 mm. The upperside of the wings is white, with black stains on the top of the forewing and hindwing. The hind wing undersides have greenish-gray spots. The butterfly is nearly identical to ''Pontia daplidice''. Investigations of the genitals are the only way to distinguish between these two types. The adults fly from March to October〔(butterfly guide )〕〔(euro butterflies )〕 with two to four generations depending on the latitude. The eggs are laid singly and have an incubation period of seven days. The caterpillars are present from May. They are greyish-greenish, with black dots and broad yellow stripes, quite similar to the larva of the ''Cabbage Butterfly'' (''Pieris brassicae''). The larvae feed on Resedaceae species. ''Pontia edusa'' hibernates in the chrysalis stage.
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