Location: Yellowstone State Park and Wildlife Area
77 degrees, mostly sunny, fairly calm. 22 species. The black female Tiger Swallowtail shows the tell-tale tiger stripes on the underside of the hindwing.
A Viceroy may have the usual line across veins on underside of the hindwing, but nearly none on topside! (All the better to fool birds --and people-- into thinking its a Monarch. Especially when some Viceroys even bask on Milkweed leaves!)
Eastern Tiger Swallowtail
Great Spangled Fritillary
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