Speyeria coronis snyderi
Immatures
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| Adult Male Female tip of abdomen |
First Instars
First Instars after hibernation
2 mm long on 7 June 2014
Molted to Second Instar
June 9, 2014 - 3 mm long
Third Instar Set to molt 18 June 2014 - 3.5 mm long
These were not doing well on Viola nephrophylla and were switched to Viola purpurea
#2 Molted to Fourth Instar 23 June, photo on 25 June 2014 - 12 mm long
#2 Molted to Fourth Instar 23 June, photo on 25 June 2014 - 12 mm long
#1 Molted to Fifth Instar June 22, 2014
16mm long on June 23, 2014
#1 Molted to Fifth Instar June 22, 2014
16mm long on June 23, 2014
#1 Sixth Instar on 28 June 2014 - 28 mm long
#1Sixth Instar on 28 June 2014 - 28 mm long
Last Instar was 39 mm on 1 July, 2014
Larva became shorter and wider (30 mm long) and made a "J" formation - July 3, 2014
Pupa formed 4 July 2014 - 26 mm long
Photo on 6
July 2014
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Photo on 6
July 2014
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| PHOTO DETAILS - ©Nicky Davis LOCATION: Located what I think was a worn Coronis female in Middle Canyon, Tooele County, Utah 23 September, 2013. ELEVATION: About 6500 feet LIFE HISTORY: Ovum: Nine ova were oviposited on 26 September 2013 and eight more over the two or three days. They were misted every day. Larva: They began hatching on 7 Ocotober and were misted daily. Hatch rate was not optimal. On 10 October 2013 they were placed in the fridge to overwinter. I attempted to keep the temperature at 34 degrees and a humidity of 70 to 85 % The first instars that overwintered were removed from hibernation at the end of May 2014 and set on Viola nephrophylla. This one began feeding on Viola nyphrophylla on June 2nd. None of the larvae did well on this plant. I eventually switched them to Goosefoot Violet (Viola purpurea) which was seen in the same area the adults were located in 2013. Most were too weakened to survive but this one made it through to pupa. Hibernation: Overwinter as first instar Host Plant
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