Christina's Sulphur (Colias christina)

Delineation of this taxonomically challenging species complex is not well agreed upon, and various authorities place various subspecies under different species. The entity known as pseudocolumbiensis may best be treated as a full species.

Queen Alexandra's Sulphur (Colias alexandra pseudocolumbiensis)

#3234
Christina's Sulphur (Colias christina pseudocolumbiensis)
Mt. Baldy, Missoula Co., MT
17 July 2013

Thanks to S. Kohler, N. Kondla, J. Pelham, and L. Koehne for illuminating ID discussion of this poorly understood group.

#3478
Christina's Sulphur (Colias christina pseudocolumbiensis)
MPG North near Condon, Missoula Co., MT
19 July 2013

As noted by S. Kohler, this female is likely ovipositing on her host plant, Canadian Milkvetch (Astragalus canadensis).


#3482 Christina's Sulphur (Colias christina pseudocolumbiensis) MPG North near Condon, Missoula Co., MT 19 July 2013	#3184 Christina's Sulphur (Colias christina pseudocolumbiensis) MPG North near Condon, Missoula Co., MT 27 July 2014


#9392 Christina's Sulphur (Colias christina pseudocolumbiensis) Woodchuck Creek, Missoula Co., MT 1 July 2014	#0188 Christina's Sulphur (Colias christina pseudocolumbiensis) Davis Creek, Missoula Co., MT 3 July 2014


#0336 Christina's Sulphur (Colias christina pseudocolumbiensis) Davis Creek, Missoula Co., MT 3 July 2014	#0999 Christina's Sulphur (Colias christina pseudocolumbiensis) Near Condon, Missoula Co., MT 11 July 2014


#9538 Christina's Sulphur (Colias christina pseudocolumbiensis) Rattlesnake Rec Area, Missoula Co., MT 9 July 2015	#9538 Christina's Sulphur (Colias christina pseudocolumbiensis) Near Condon, Missoula Co., MT 2 July 2015

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