Wing span: 3 3/8 - 4 7/8 inches (8.6 - 12.4 cm).
Caterpillar hosts: Milkweeds including common milkweed (Asclepias syriaca), swamp milkweed (A. incarnata), and showy milkweed (A. speciosa); and milkweed vine in the tropics.
Eggs laid singly on host; caterpillars eat leaves and flowers.
Habitat: Many open habitats including fields, meadows, weedy areas, marshes, and roadsides.
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Picture taken June 20, 2007
This very young caterpiller was not the intended target of the photo. After I got home as I was going
through the pictures, I spotted this little guy in the milkweed flowers.
Picture on left and below taken June 20, 2007
Monarch population on Crex Meadows seems to be impacted significantly by drought. However, in 2016 (and 2014), there seemed to be a greatly reduced number of caterpillars on abundant milkweed. Dry conditions was not an issue in these two recent years.
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