Sagebrush Checkerspot
Chlosyne acastus ssp.
Carbon County, Montana

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Ova laid 24 and 25 June 2011


Ovum ready to hatch 1 July 2011
ovum ready to hatch

First Instar -  1 July 2011
first instar

Second Instars with old head cases and discarded skins
2nd Instars

Third Instar
3rd Instar

Fourth Instar
4th instar

Fifth Instar
5th instar, lateral view

Fifth Instar
Dorsal view of 5th instar

August 7, 2011- Some larvae formed pupa instead of diapausing

PHOTO DETAILS - ©Nicky Davis
Steve Kohler LOCATED  female 22 June 2011 on host plant Chrysothamnus viscidiflorus  Near Belfry, Carbon County, Montana  and gave them to Jacque Wolfe who gave me a few to rear.
GPS: Unknown
ELEVATION: 5099 feet

Ovum:  Female oviposited on Chrysothamnus viscidiflorus  24-25 June 2011.  Hatched 1 - 2 July 2011, about 7 days
Larva:  Overwinter as third or fourth instar
Pupa:  Some formed pupa and developed into butterflies the same year but most did go into diapause.
Adult:  unknown
Broods: unknown
Hibernation:  Overwinter as  larvae

Host Plant - click below for photos
Reared on  Chrysothamnus viscidiflorus then changed to Engelmann Aster  because viscidiflorus was drying out in  my area

Host Plant
Chrysothamnus viscidiflorus
Engelmann Aster
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