Leona's Little Blue
We have an endemic butterfly species in Klamath County, Oregon. Leona's Little Blue ( Philotiella leona ) is only known to occur in a small area (12.8 square miles) near Sand Creek. A related species ( Philotiella speciosa , the Small Blue) occurs in scattered populations in California and the Southwest. This is a tiny butterfly. Adults are on the wing in late June and early July of most years. An inconspicuous plant ( Eriogonum spergulinum , spurry buckwheat) is the known food plant for the larvae. Butterfly species often specialize when it comes to larval food plants--while adult Monarchs will take nectar from many types of flowers, the caterpillars need milkweed (genus Asclepias , not some of the other plants that are colloquially called milkweeds). Similarly, Leona's Little Blue may be seen on a variety of flowers in its habitat including other buckwheats, willowherbs and borages, but when the females lay their eggs they lay them on spurry buckwheat. I first sought out Leo...