Eastern Black Swallowtails Laying Eggs
Eastern Black Swallowtail (Papilio polyxenes) butterflies are mating and laying eggs. The female Eastern Black Swallowtail can appear quite frantic as she visits multiple host plants just long enough to leave a very tiny, spherical, pale yellow egg before heading on to the next plant. In the wild, Queen Anne’s Lace, Wild Parsnip, Golden Alexander and Poison Hemlock are favorite host plants; in vegetable gardens you frequently find larvae (if you should miss the eggs) on dill, fennel and parsley. Entomologists have found that host plant odor is one of the cues involved in the Eastern Black Swallowtail’s choice of where to lay eggs.
Naturally Curious is supported by donations. If you choose to contribute, you may go to https://naturallycuriouswithmaryholland.wordpress.com and click on the yellow “donate” button.
This entry was posted on July 27, 2018 by Mary Holland. It was filed under Butterflies, Eastern Black Swallowtail, Egg laying, July, Lepidoptera, Poison Hemlock, Queen Anne's Lace, Uncategorized, Wild Parsnip and was tagged with Papilio polyxenes.