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How to Tell the Difference Between Male and Female Butterfly Pupae or Chrysalises
Male Black Swallowtail chrysalis pupa
Female Black Swallowtail pupa chrysalis
Eastern Black Swallowtail Butterfly
The male does not have the line indicated
by the yellow arrow in the photo to the right.
Eastern Black Swallowtail
The female has the line indicated by the yellow arrow.
Male Giant Swallowtail butterfly pupa chrysalis
Female Giant Swallowtail butterfly pupa chrysalis.
Gaint Swallowtail Butterfly
Male chrysalis (pupa).
The enlarged photo has an explanation of the difference.
Gaint Swallowtail Butterfly
Female chrysalis (pupa).
Female Monarch butterfly chrysalis pupa
Male Monarch butterfly chrysalis pupa
Female Monarch butterfly chrysalis pupa
Male Monarch butterfly chrysalis pupa