Western Sulphur, Pupa - Colias occidentalis pseudochristina

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

ADULT FEMALE     ADULT MALE      FEMALE ECLOSURE      MALE ECLOSURE      LARVA     SPECIMEN
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#1 Pupa formed and photographed  24 May 2009

#1 Pupa formed 24 June 2009


#3 Female Pupa formed  26 May 2009
Photo 1:33 P.M. 1 June 2009

#3 Female Pupa 1:33 P.M. 1 June 2009

#3 Female Pupa 8:21 A.M. 2 June 2009
30 Minutes before eclosure
#3 Female Pupa 8:21 A.M. 2 June 2009

#3 Female Pupa 8:21 A.M. 2 June 2009
30 Minutes before eclosure
#3 Female Pupa 8:21 A.M. 2 June 2009


#4 Male Pupa formed 26 May 2009, 3/4 inch long
Photo 9:43 A.M. 2 June 2009

#4 Male Pupa 9:43 A.M. 2 June 2009



#4 Male Pupa 2:11 P.M. 2 June 2009
1 hour 7 minutes before eclosure
#4 Male Pupa 2:11 P.M. 2 June 2009, 1 hour 7 minutes before eclosure





Photo Details - ©Nicky Davis
Located females at Strawberry Reservoir June 24, 2008. 
Elevation 7709 feet
Coordinates  North 40.09.85, West 111.11.517

Oviposited  June 25-27, 2008 some on lathyrus lanswardi but mainly Astragalus cicer. Eclosed in three to four days and were set on Astragalus cicer to feed.  Although they were kept in light 24x7, they all hibernated as third instar.
They were put in a refrigerator July 23, 2008 at about 40 degrees and after a couple of months were transferred to a refrigerator with freezing temperatures.  On May 8, 2009 they were taken out and placed on Astragalus cicer where they began feeding again.   May 14th  they molted to fourth instar.  On May 18, 2009 they molted to fifth instar.  These two pupated 26 May 2009.

Time spent
as ovum = 4 days
Larva=  about twelve days in 2008 and  about 18 days in 2009
Pupa =  7 - 8 days


These can feed on Lathyrus Lanswardi,  Thermopsis and Astragalus cicer.  They can't feed on hedysarum.

Host
To see photos of the host plant used to feed these larvae, click  on

Astragalus cicer 

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