Utah mammals

Fringed Myotis in Utah

Myotis thysanodes

Native to Utah S3 Vulnerable in Utah

Not listed as nonindigenous in Utah by USGS NAS; native to its Utah range.

IUCN Red List status

  1. LC
  2. NT
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX

LC – Least Concern

Widespread and abundant; not at risk.

Fringed Myotis in Utah, by the numbers

Rare in Utah 110th most recorded of 141 mammals logged in Utah

7 occurrence records
1 with iNaturalist photos
Jul 23, 2025 Last seen in Utah

Records from 2000–2026.

When to look for the Fringed Myotis in Utah

Most sightings fall in July to August.

7 Utah occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence. Based on a small number of dated records; the seasonal pattern may not be representative.

Monthly Utah records (table)
MonthRecords
January0
February0
March0
April0
May0
June1
July3
August3
September0
October0
November0
December0

Monthly fringed myotis occurrence records (iNaturalist and GBIF) in Utah, 2000–2026.

Seasonality

Sparse observation record in Utah; presence confirmed but timing of activity not well documented.

Occurrence map

Where Fringed Myotis has been recorded in Utah

7 records mapped · zoom and drag to explore

7 Utah records mapped

Where it's recorded in Utah

CountyRecords
San Juan County 3
Grand County 2
Emery County 1
Utah County 1

The complete county distribution, spread across 4 Utah counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Utah has just seven fringed myotis records since 2000, and six come from San Juan, Grand, and Emery counties, canyon country riddled with cliff crevices, caves, and old mine tunnels this bat uses for roosting by day. It hunts moths and beetles at night, sometimes gleaning prey directly off vegetation instead of only catching insects in flight, and can live surprisingly long for its size, up to 18 years in the wild.

Only one of those records came from iNaturalist and the rest through GBIF, since fringed myotis are hard to identify without a hand net or acoustic detector. All of them fall between June and August, the season when mist-net and acoustic surveys run, and that’s too few records to show anything firmer about timing. NatureServe ranks it S3, vulnerable, in Utah.

Occurrence data from iNaturalist and GBIF.

More mammals in Utah in the atlas

Data & sources

The data and visualizations on this page draw on these open sources:

  • GBIFCC-BY 4.0occurrence records behind the range map, elevation, and record counts
  • iNaturalistCC0 / CC-BY / CC-BY-SAobservations, photos, and audio recordings
  • NatureServe ExplorerCC-BYthe state conservation rank
  • IUCN Red Listattributed factthe global conservation status
  • USGS NASpublic domainnative / introduced status
  • Natural Earthpublic domainthe relief basemap
  • USFSpublic domainnational-forest boundaries