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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Butterflies and Moths (Lepidoptera) » Butterflies (excluding skippers) (Papilionoidea) » Swallowtails, Parnassians (Papilionidae) » Papilioninae » Papilio » Anise Swallowtail (Papilio zelicaon) » Anise Swallowtail (Papilio zelicaon zelicaon)
Photo#28034
Anise swallowtail larva - Papilio zelicaon
Copyright © 2005 Kildale

Anise swallowtail larva - Papilio zelicaon
Victoria, British Columbia, Canada
August 11, 2005
Can anyone explain why one of these has those small clumps of hairs all over it and the other is smooth. Is this different sexes?
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Contributed by Kildale on 12 August, 2005 - 5:27pm
Last updated 4 June, 2009 - 6:40pm

Moved
Moved from Anise Swallowtail.
… David J. Ferguson, 4 June, 2009 - 6:40pm login or register to post comments

Different ages
These are likely different instars. Don't know if anyone has figured out how to sex caterpillars. Butterflies certainly don't have sex organs during the caterpillar stage. Those form during pupation. Don't know why a particular caterpillar takes on a particular gender. Is it already determined in the egg, or does it depend on what kind of food they eat and how much, or is it temperature driven? Interesting question. Will be interesting to see the responses you get here.
… john and jane balaban, 13 August, 2005 - 12:25pm login or register to post comments

 
Anise larva
Thanks for your comments, it is an interesting situation, I'll try to keep watching their progress.
… Kildale, 13 August, 2005 - 1:07pm login or register to post comments

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