One-Eyed Sphinx Smerinthus cerisyi Sphingidae Larvae Home     Butterflies and Moths     Pupae   Adult Male    Adult Female    Details    First Instar on willow which it refused to use as host plant First Instar on willow which it refused to use as host plant #1 Second Instar - 11 mm Molted on 25 July 2015 Photo on 26 July 2015 #1 Second Instar Molted on 25 July 2015 Photo on 26 July 2015 - 11mm Third Instar  #1 29 July 2015 - 15 mm Third Instar  #1 29 July 2015 - 15 mm Third Instar  #1 29 July 2015 - 15 mm #1 Fourth Instar  30 mm long 1 August 2015 #1 Fourth Instar - 30 mm long on 1 August 2015 Fifth Instar - 6 August 2015 - 46 mm long Photos - ©Nicky Davis Using his mercury vapor light on 10 July 2015, John Richards caught a female One-eyed Sphinx Moth, Smerinthis cerisyi 1/2 mile east of the mouth of South Willow  Canyon, Tooele County, Utah. First Instar larvae received from John Richards and his friend Curt on 22 July 2015 First instars were first placed on willow which was rejected.  They were then placed back on Aspen leaves and they began feeding. Second Instar - two molted to second instar on 25 July 2015 - 8 mm Photo on 26 July 2015 - 11 mm Third Instar #1 -  3 photos  on 29 July 2015 - 15 mm long Fourth Instar #1  molted 1st August, photo 6 August 2015 - 30 mm long Fifth Instar #1 molted 6 August 2015 - 46 mm long others to 53 mm long #1 Stopped eating and walked off plant 11 August 2015 After walking off the plant to pupate they were each placed in a plastic, lidded  container filled with sand and lizard litter. After worming their way to the bottom of the container, they each silked a loose nest using some of the lizard litter. After 3-4 days they pupated. Female Pupa - 42 mm long Male Pupa - 38 mm Reported Host Plants Willow Aspen Poplar Range