Euproserpinus wiesti
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Prairie_sphinx_moth
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Euproserpinus wiesti faces severe threats from habitat destruction due to urban development and agricultural expansion in its limited California range. The species' specialized relationship with its host plant, Clarkia, makes it particularly vulnerable to habitat fragmentation and degradation. Climate change poses additional risks through altered precipitation patterns that could affect the timing of host plant availability and larval development cycles.
Habitat
This sphinx moth inhabits open grasslands, chaparral edges, and oak woodland clearings in California's Central Valley and adjacent foothills. The species requires areas with abundant populations of its host plant, evening primrose family species (Onagraceae), particularly Clarkia species.
