False Sphinx - Black-Rimmed Prominent
Pheosia Rimosa
Notodontidae - Prominent Moths


Adult Male
After Emerging from Pupa


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Adult Male


Drying Wings
drying wings

Shows antennae
antennae



Photos - ©Nicky Davis
22 July 2015 - I received ova from John Richards and friend Curt who caught the female using a mercury vapor light on 18 July 2015 near Bear River Station, Summit County Utah.

Emerged from ova 25 July 2015.  They refused willow but started to feed on aspen leaves.
Second Instar  28 July 2015

Molted to Fourth Instar 5 August 2015, 37 mm on 6 August

Pupae #1 - Larvae off plant 10 August 2015 and pupated 12 August 2015

Number of days at each stage
Ova - 3 days
First instars - 3 - 4 days - 
Second instars -  5 days -
Third instars - 4 days -
Fourth instars -  5 days -
Fifth instars - 5 days - 50 mm
Larvae moved off plant and refused to eat then burrowed into a  sand/lizard litter mix to pupate which takes 2-3 days.
Pupae 22-23 mm long - over winter as pupae

Photos of Adult Emerging May 17, 2016

Host Plants reported
Willow
Aspen
Poplar

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