Western White (Pontia occidentalis)

Widespread in the western US and Canada.
Western White (Pontia occidentalis)
Lemhi Pass, MT
20 July 2014

Male on left, female on right

Western White (Pontia occidentalis)
Lemhi Pass, MT
20 July 2014

Western White (Pontia occidentalis) Western White (Pontia occidentalis)
Western White (Pontia occidentalis)
Bitterroot River Floodplain, Missoula Co., MT
29 June 2014
Western White (Pontia occidentalis)
Bitterroot River Floodplain, Missoula Co., MT
29 June 2014

Western White (Pontia occidentalis) Western White (Pontia occidentalis) #0870
Western White (Pontia occidentalis)
Mt. Baldy, Missoula Co., MT
9 July 2014

Western White (Pontia occidentalis) Western White (Pontia occidentalis) #2459
Western White (Pontia occidentalis)
Mt. Baldy, Missoula Co., MT
21 July 2014

#5664
Western White (Pontia occidentalis)
Below Mt. Baldy, Missoula Co., MT
23 Apr 2015

Spring brood Western White have bolder and darker ventral markings.


Western White (Pontia occidentalis) Western White (Pontia occidentalis)
Western White (Pontia occidentalis)
Mt. Baldy, Missoula Co., MT
9 July 2014
Western White (Pontia occidentalis)
Angela, Rosebud Co., MT
26 Apr 2014

Western White (Pontia occidentalis) Western White (Pontia occidentalis) #4670
Western White (Pontia occidentalis)
Near Condon, Missoula Co., MT
2 Sep 2014

Western White (Pontia occidentalis) Western White (Pontia occidentalis) #3222
Western White (Pontia occidentalis)
Mt. Baldy, Missoula Co., MT
17 July 2013

Western White (Pontia occidentalis) Western White (Pontia occidentalis) #6426
Western White (Pontia occidentalis)
MPG Ranch Education Garden, Missoula Co., MT
3 Oct 2014

Western White (Pontia occidentalis) Western White (Pontia occidentalis)
#0215
Western White (Pontia occidentalis)
Red Mountain, Lewis & Clark Co., MT
15 July 2015
#7765
Western White (Pontia occidentalis)
MPG Ranch, Missoula Co., MT
26 June 2015

#9115
Western White (Pontia occidentalis)
MPG Ranch, Missoula Co., MT
3 July 2015

#9115
Western White (Pontia occidentalis)
MPG Ranch, Missoula Co., MT
3 July 2015
#3283
Western White (Pontia occidentalis)
MPG Ranch, Missoula Co., MT
16 Apr 2016

Western White (Pontia occidentalis)
Top House, MPG Ranch, Missoula Co., MT
16 Apr 2016
#3315

Western White (Pontia occidentalis) #5757
Western White (Pontia occidentalis)
Above Woodchuck Creek, Missoula Co., MT
18 Sep 2014

While Western White is more likely in this location, I cannot completely rule out that these may be Checkered Whites.


Western White (Pontia occidentalis) Western White (Pontia occidentalis)
Western White (Pontia occidentalis)
Skyline Trail above Paradise, Mt. Rainier, WA
9 Aug 2004
#1516
Western White (Pontia occidentalis)
Skyline Trail above Paradise, Mt. Rainier, WA
9 Aug 2004
#1471

Western White (Pontia occidentalis) Western White (Pontia occidentalis) Western White (Pontia occidentalis)
Jordanelle Wetlands, Wasatch Co., UT
14 July 2014
#1218

Western White (Pontia occidentalis) Western White (Pontia occidentalis) Western White (Pontia occidentalis) form calyce
Cottonwood Pass, CO
12 July 2016


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Created on ... May 5, 2007 | jeffpippen9@gmail.com