[1] Taylor's checkerspot once ranged from the Willamette Valley in Oregon to Vancouver Island in British Columbia.

The larvae feed upon certain plant species in the native Castilleja and exotic Plantago genera that produce defensive compounds called iridoid glycosides.

[5] In Oregon Taylor's checkerspot is on the Threatened and Endangered Species list, but receives no protection under state statute.

The reason for this is that prairies are prime locations for agriculture as well as development of all types due to the lack of trees and flat topography.

[8] Increased risk of harm due to drought is another major concern since they are now stuck on these patches of habitat with no chance to migrate to more suitable places.