Antheraea polyphemus
Female
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©Nicky Davis Kevin Collison from Osceola, Polk County, Wisconsin (elevation 825 feet) had a female polyphemus mate May 31, 2015 and she oviposited on June 1, 2015. I received ova on June 6, 2015. Kevin advised that the caterpillars hatch in about 6 days with temperatures in low 90s, 24 days with temperatures in the mid 60s and about 10 days in the low 70s. Ova - 10 days as ova at 75 ° F First Instar - Hatched 11 June 2015 - Three days as first instar (75°-78°) - 3 mm long Second Instar - #3 Molted to 2nd instar 14 June 2014 - Four days as second instar - 6 mm long Third Instar - #3 molted to 3rd instar 18 June 2015 - Five days as third instar - 12 mm long Fourth Instar - #3 Molted to 4th Instar 23 June 2015 - Seven days as fourth Instar, 19 mm long 26 June 2015 40 mm long Fifth Instar - #3 Molted to 5th instar on 30 June 2015- 60 mm long at rest - 9-11 days as fifth instar Gambel Oak - Quercus gambelii was used as the host plant Host Oak (Quercus), Birch (Betula), Willow (Salix)  |