sulfur butterfly
US /ˈsʌl.fər ˌbʌt.ər.flaɪ/
UK /ˈsʌl.fər ˌbʌt.ər.flaɪ/

1.
mariposa azufre
any of various butterflies of the family Pieridae, typically having yellow or orange wings, especially of the genus Colias or Phoebis
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A bright yellow sulfur butterfly fluttered among the wildflowers.
Una brillante mariposa azufre amarilla revoloteaba entre las flores silvestres.
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The children chased a group of sulfur butterflies across the meadow.
Los niños persiguieron a un grupo de mariposas azufre por el prado.