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Summer Generation Red Admiral Outbreak in Iowa

If you live in Iowa, have you been seeing the abundant Red Admirals that have emerged or arrived within the past 10 days? Following a rain in the Ames area on June 13, Red Admirals were suddenly all over the place the next day. I went outside on the Iowa State University campus on the afternoon of June 14 and saw dozens of fresh new ones nectaring in a linden tree. Many more are present now than there were before this outbreak occurred.

Another place I saw many fresh ones was at Orange City on the morning of June 15. These seemed to be localized within a limited area of northwest Iowa, because I saw only one butterfly near Sutherland and none near Newell on the same day. The Orange City butterflies, however, didn’t seem to have been induced to emerge by recent rainfall, since that part of the state missed out on the rain that reached most of Iowa on the 13th.

I also received a report of 200 nectaring in a linden tree near Marshalltown, also on June 15. There was also ...more ↓

Posted on June 21, 2017 01:49 PM by iowabiologist iowabiologist | 0 comments | Leave a comment
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The Vanessa Migration Project is an opportunity for you to share your observations of Vanessa butterflies to find out how they migrate and distribute themselves across North America each year. We are tracking the movements and seasonal changes in their distribution as their range expands northward in the spring and ...more ↓

Mini iowabiologist created this project on March 29, 2016

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