that the red buckwheat is a host for the Avalon Scrub-Hairstreak, as the red buckwheat is endemic to islands off the California coast, and Avalon is a town on Santa Catalina island. This particular plant of Eriogonum grande rubescens, however, is a horticultural specimen in my backyard on mainland California, so I doubt it is hosting a butterfly endemic to Santa Catalina island. Thanks for introducing me to the Avalon Scrub-Hairstreak, though, I probably would never have researched it.

I considered rearing one or more of the larvae, but my buckwheat plants are still quite small, and I didn't want to truncate them too much to provide food for a captive larva.