A Black Swallowtail

I wandered through our field the other day, taking a butterfly survey.  One thing I noticed was that there were areas with lots of butterflies and areas with few.  Water in the environment seemed to make a pretty big difference–where there was water there were butterflies.

This black swallowtail, Papilio polyxenes, was in the area with sparse numbers of butterflies.  It was laying eggs on a wild parsnip plant.

Black swallowtails will be present pretty much all summer and into the fall.


About the roused bear

Nature photographer from central Iowa.
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