Gyros muirii

Family: Crambidae · Class: Insecta · Order: Lepidoptera

Gyros muirii is a small moth in the family Crambidae, subfamily Odontiinae. This species belongs to the tribe Odontiini and is catalogued as Hodges#4811 in the taxonomic classification system. Physical characteristics and detailed morphological descriptions for this species remain poorly documented in the scientific literature. Gyros muirii appears to be endemic to California, with confirmed records from high-elevation locations in the Sierra Nevada and Cascade Range. Documented observations include specimens from the Eddy Mountains in Siskiyou County at 7,200 feet elevation and the Owens River Headwaters Wilderness in Mono County (BugGuide). These records suggest the species occurs in montane environments of northern and eastern California, though the full extent of its range remains incompletely mapped. Based on available collection data, Gyros muirii inhabits high-elevation mountain ecosystems, occurring at elevations of at least 7,200 feet. The species appears to be associated with wilderness areas and relatively undisturbed montane habitats. Specific vegetation associations and microhabitat preferences have not been well documented. The high-elevation nature of confirmed records suggests adaptation to cooler temperatures and shorter growing seasons typical of subalpine zones. Ecological information for Gyros muirii is extremely limited. Like other members of the subfamily Odontiinae, this species likely has larvae that feed on organic matter, potentially including dead plant material or fungi, though specific host relationships have not been documented. Adult flight period appears to include mid-summer months, with records from June and July (BugGuide). The presence of both male and female specimens in June suggests this may be a peak activity period for the species. Detailed information about reproductive biology, larval development, and specific dietary requirements remains undocumented. No federal or state conservation status has been assigned to Gyros muirii. The species is not listed under the Endangered Species Act, nor does it appear on California's special concern species lists as of December 2025. The limited number of documented records and apparent restriction to high-elevation habitats suggest this may be a naturally rare species or one that is difficult to detect. Climate change impacts on high-elevation ecosystems could potentially affect this species if it has narrow habitat requirements, though specific threats have not been assessed. The paucity of biological and ecological data for this species represents a significant knowledge gap that limits conservation assessment. Scientific documentation for this species remains extremely limited. The information presented here is based on available sources including BugGuide community observations and taxonomic databases. Additional research is needed to better understand the distribution, habitat requirements, and ecology of Gyros muirii. Field surveys in appropriate high-elevation habitats could help clarify the species' range and conservation needs.

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