Scudder's Sulphur, Male - Colias scudderii scudderii

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

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Male - Eclosed 9 May 2009 from #2 larva that hibernated through winter of 2008

lateral View of male Scudderii that hatched May 9, 2009

new male just expanding and drying wings




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.

Pupa
A pupa formed August 27, 2008 and butterfly hatched after six days.

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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