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Eastern Tiger Swallowtail, Papilio glaucus,
Lance Rosier Unit in the Big Thicket around 50 miles north of the Gulf of Mexico in Eastern Texas,
20 March 2004.
Image: Biosparite.
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While visiting Two Ponds, a wildlife refuge here in Arvada, I captured these wonderful butterfly images, earlier today:
A two-tailed tiger swallowtail (Papilio multicaudata) feeding on a showy milkweed (Asclepias speciosa) blossom, along the banks of Little Dry Creek.
And a few more: (Click on any…
Photo: KENPEI, Wikimedia Commons.
Researchers have isolated an antimicrobial peptide from swallowtail butterflies, Papilio xuthus (image above). After creating a synthesized version of the peptide they called Papiliocin, they wanted to know how it worked. What they found was that Papiliocin causes…
Great photos! They look like P. glaucus to me, though; I don't think P. multicaudata is found this far east, and the smaller tails on the latter should be a lot longer if intact. P. glaucus does have the set of nubby little not-quite-second-tails that are visible in the photo.
The thick wing stripes and heavy blue scaling indicate that both of your guests are females. We had a beautiful male P. glaucus hanging around our butterfly bush here in Rochester, NY last week -- the males have thinner wing stripes and few or no blue scales.
August in the Northeast really is big-game season, butterfly-wise. Keep that camera handy!
Thanks, Julie! I had a feeling I was wrong but I was hoping someone who knew more than I would correct me. If it's not big and doesn't have a mouth full of fangs, apparently I need some help. :)
I have a lot more photos from that morning, many of them much better than these. I was in a rush and couldn't pick better ones, but hopefully I'll have some more tomorrow. Thanks for the help!