Eupithecia subapicata

Family: Geometridae · Class: Insecta · Order: Lepidoptera

Eupithecia subapicata is a moth in the family Geometridae, subfamily Larentiinae, first described by Achille Guenée in 1857. This species belongs to the large genus Eupithecia, commonly known as pugs, which includes numerous small to medium-sized moths with relatively narrow forewings. The species is distinguished by its pointed primary wings with a wood brown ground color, typical of many Eupithecia species. Like other members of this genus, E. subapicata likely has a wingspan of approximately 15-25 millimeters, though specific measurements for this species have not been well documented. The forewings display the characteristic geometric patterns common to the Geometridae family, though detailed morphological descriptions remain limited in the scientific literature. Eupithecia subapicata occurs in the western United States, ranging from California through Oregon to Washington. In California, the species is documented from the central coastal region, with at least one verified specimen collected from Los Molinos, Mill Creek at Sacramento River in Tehama County at an elevation of 210 feet (Essig Museum of Entomology, UC Berkeley). This collection record indicates the species may have a broader distribution within California than previously documented. Specific habitat requirements for E. subapicata have not been thoroughly studied. Like many Eupithecia species, it likely inhabits areas with suitable larval host plants, though the specific host plant relationships for this species remain undocumented. The Tehama County collection site suggests the species may utilize riparian or adjacent habitats near major waterways. Detailed information about the life cycle, behavior, and ecology of E. subapicata is limited. Flight period data indicates activity in February, based on the 2005 collection date, though the full seasonal activity pattern is unknown. As with other Eupithecia species, larvae likely feed as external feeders on flowers, buds, or developing seeds of specific host plants, but these relationships have not been identified for E. subapicata. The conservation status of E. subapicata has not been formally assessed. The species appears to have a relatively restricted range within California, and the limited number of documented records suggests it may be uncommon or have specific habitat requirements. However, without comprehensive survey data or population studies, the true conservation status remains uncertain. Scientific documentation for this species remains limited. The information presented here is based on available taxonomic records, museum specimens, and general knowledge of the genus Eupithecia. If you have additional verified information about this species' biology, distribution, or ecology, please contact us to help improve this species account.

Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, and more.