What's That Bug? does not endorse extermination

Follow-up on Zebra Longwing caterpillar
I just love your site! 🙂 Thanks again for letting me know that I had Zebra Longwing caterpillars on a passion vine. I had followed them through the stages and have attached additional pictures of the cacoon and adults on a cacoon.

Lastly. I have now found a SECOND different caterpillar on the same passion vine. It has the same spikes as the Zebra Longwing but it is differently colored. Do you know what this caterpillar is? Thanks.
Bill
Miami, FL

Wow Bill,
That is one impressive looking Chrysalis. We have never seen the Chrysalis or Pupa of a Zebra Longwing. It is very ornate. It appears that the Zebra Longwing adults are mating, and we suspect the caterpillar might be the coloration of an earlier instar. Caterpillars molt four times, once after each of the five instars or growth phase. On many species, each instar is a different color with different markings. After the fifth molt is the Chrysalis stage. Your metamorphosis series is a fabulous addition to our site.

Correction: (08/14/2007) caterpillar id
hello there!
I have long looked through your site and never contacted you! I have been interested in bugs for some time since I was little, and now i’m 17 and going to Cornell U for entomology (which was my dream!)! I’ve worked at a butterfly vivarium for 5 years now, and I’m very much into rearing and raising moths and butterflies, especially the Saturniids!! I have a bunch of Actias selene (indian moon moth) eclosing at the moment, which I will gladly photograph and send in!! My email actually pertains to a picture I came across on your caterpillar page! it was on the caterpillars 10 link, and the date was 6/29/2007, of the zebra longwing chrysalis and butterflies. The caterpillar is not an early instar of the zebra; it’s a julia butterfly (Dryas iulia) caterpillar. The zebras remain white with black spots for their entire life, except when they are first and second instar babies, and look sort of yellowish! I hope you don’t mind my input!!
Jeff Petracca

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