Genomic-revision
Guides
Junonia stemosa
twintip buckeye
Junonia stemosa, the twintip buckeye, is a butterfly species described in 2020 following genomic revision of North American Junonia. It is endemic to southern Texas, particularly coastal barrier islands, where it specializes on Stemodia tomentosa as its exclusive larval host plant. The species maintains genetic integrity despite occurring in sympatry with related buckeyes, and its distribution is tightly linked to the patchy occurrence of its host plant in sandy coastal habitats.