Black swallowtail (Papilio polyxenes) on Lindheimer's milkvetch (Astragalus lindheimeri)

Date: 2020-03-25 19:13:36 [aoa id=’0′][dn_wp_yt_youtube_source type=”101″ id=”pYISyHI9vaw”][/aoa] Black swallowtail (Papilio polyxenes) butterfly on Lindheimer’s milkvetch (Astragalus lindheimeri) in north central

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