Scudder's Sulphur, Larva - 2009- Colias scudderii scudderii

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Scroll down for all photos of  LARVAE.  For other photos and information, click on

MALE       FEMALE    MALE EMERGENCEE    FEMALE EMERGENCE 2008    
FEMALE EMERGENCE 2009       LARVA 2008     PUPA - 2008      PUPA 2009     SPECIMEN

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#1 Larva molted to Fifth Instar after hibernating for the winter - 26 April 2009
#1 larva molting to 5th instar after hibernating


#1  Fifth Instar 29 April 2009
lateral

#2  MaleFifth Instar 29 April 2009
Fifth Instar dorsal on 29 April 2009

#2 Male Fifth Instar 29 April 2009
fifthe instar 29 April 2009

#2 Male Pre-Pupa 1 May 2009
#2 Pre-Pupa on 1 May 2009



Photo and other Details - ©Nicky Davis

Two females located by Todd Stout on Murdock Mountain. 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 Brush 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.


Host
The females oviposited on an unknown vaccinium and the larvae fed on  D. Willow - Salix planifolia.  After hibernation, they fed on
Salix exigua.  For photos of the host plant used, click on

Diamondleaf Willow, Salix planifolia
Salix exigua


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