| Scudder's
Sulphur Colias scudderii scudderii Immatures |
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| Adults Female Eclosure Male Eclosure Specimen |
OVA
Oviposited on July 28th, photo on July 29th, 2008
Oviposited on July 28th, photo on July 30th, 2008
showing development. Hatched August 1st.
LARVAE
1st instar just hatched August 1, 2008
Molted to 2nd instar on August 6th, photo taken on August 7th, 2008
Molted to 3rd instar on August 10th, photo taken August 13th, 2008 - dorsal view
Molted to 3rd instar on August 10th, photo taken August 13th, 2008 - lateral view
Molted to 4th instar on August 21st, photo taken August 21, 2008 - partial dorsal
Molted to 4th instar on August 21st
photo taken August 21, 2008 - lateral
5th instar on August 24th
#1 Fifth instar on August 24th - dorsal
1 inch on August 23. 2008
Pre-Pupa
#1 Formed "J" on August 26, 2008
#1A Larva molted to Fifth Instar after hibernating for the winter - 26 April 2009
#1A Fifth Instar 29 April 2009
#2 Male Fifth Instar 29 April 2009
#2 Male Fifth Instar 29 April 2009
#2 Male Pre-Pupa 1 May 2009
PUPAE
| Female Pupa On August 27, 2008  |
Female Pupa August 31, 2008  |
September 1, 2008 one day before eclosure  |
| Male Pupa #2
formed 1 May 2009, Photo 8 May 2009  |
Male Pupa #2- 8:05
A.M. 9 May 2009  |
Male Pupa #2 9:42
A.M. 9 May 2009 1 hour 28 minutes before eclosure  |
| Photo
Details
- ŠNicky Davis On July 27, 2008, Jack Harry, Les Davis and I located two females past mm 27 along the Mirror Lake Highway, Duchesne County, Utah. All females were returned to the same area after we obtained these eggs. N. 40.40.881, W. 110.55.165 Elevation 10,349 feet Ova These females oviposited 160 ova on an unknown Vaccinium within a couple of days. They hatched after four days. Larva We put the larvae on Salix exigua (Brush Willow) which they refused to feed on, and all but 50 died. We moved the surviving 50 larvae to Diamondleaf Willow, Salix planifolia which was growing at the same location in which the females were flying. The larvae fed on that plant just fine. I kept them under light 24x7, nevertheless they all hibernated except one. They were taken out of hibernation April 21, 2009 and were fed Coyote Willow, Salix exigua because the road into the Uinta Mountains where the Salix planifolia grows is not open in April . Most of them were fine eating the exigua after the hibernation. Pupa A pupa formed August 27, 2008 and a female butterfly hatched after six days. Host Plant The females oviposited on an unknown vaccinium and the larvae fed on D. Willow - Salix planifolia. After hibernation, they fed on Salix exigua.
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