You may remember the post on April 4th about one of our naturalists at Wehr Nature Center discovering a cocoon near their home while walking their dogs.They ended up taking the cocoon home with them and placed it in a container to keep in an unheated garage. They would have normally left it, but were worried about the cocoon getting squished, raked up, or even mowed in early Spring. We now have an update that a male Polyphemus Moth emerged on June 3rd and was released into the wild! Fingers crossed that he finds a nice Polyphemus lady friend. 🤞 Adults emerge from their cocoons in the late afternoon, and mating occurs the same day from late evening to early morning. Females lay eggs that evening, singly or in groups of 2 or 3, on leaves of the host plant. Newly hatched caterpillars eat their eggshells, and caterpillars of all ages are solitary. Caterpillars eat a wide variety of trees and shrubs, including oak (Quercus), willow (Salix), maple (Acer), and birch (Betula).Polyphemus moths are part of the Family Saturniidae (aka the Giant Silk Moth Family), members of this family do not have mouth parts as adults and therefore do not feed.
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Here is the interview that staff from both Wehr Nature Center and Milwaukee Public Museum had the pleasure of doing for the 11th Annual BioBlitz. We had roughly 203 patrons that visited us on Saturday, June 13th in addition to the 50 plus folks that took part in the evening Bat Program on Friday. As of right now, scientists and surveyors found 1,334 species and that number will probably grow as species are added to the list. Thank you to our patrons, scientists, surveyors, and Milwaukee Public Museum for making this event a huge success.Species lists like these are important as they help to inform management decisions for the Land here at Wehr Nature Center.
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