Two Black Swallowtail Chrysalis

by Cecilia Locke
(Austin, TX)

I work in a private school and we love watching swallowtail caterpillars. I always put a smooth stick and a rough stick in the cage -- if the caterpillar forms his chrysalis on the smooth stick then it will be green -- if it is on the rough stick it will be brown. This picture shows a great example of that.

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Green vs brown black swallowtail chrysalis
by: Karen

Interesting....I didn't know that a smooth vs rough stick changes the color of the black swallowtail chrysalis. I only have used the green stem vs brown stick and seen the color difference. Nature is amazing!

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