Indiana mammals

Tricolored Bat in Indiana

Perimyotis subflavus

Native to Indiana S1 Critically Imperiled in Indiana

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

IUCN Red List status

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

VU – Vulnerable

High risk of extinction in the wild.

Tricolored Bat in Indiana, by the numbers

Occasional in Indiana 29th most recorded of 74 mammals logged in Indiana

37 occurrence records
37 with iNaturalist photos

Records from 2000–2026.

37 total records count every Indiana occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 35; the monthly chart covers the 35 records with a full observation date.

When to look for the Tricolored Bat in Indiana

Most sightings fall in March to May.

35 Indiana occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly Indiana records (table)
MonthRecords
January1
February3
March6
April7
May5
June0
July1
August3
September5
October1
November3
December0

Monthly tricolored bat occurrence records (iNaturalist and GBIF) in Indiana, 2000–2026.

Seasonality

Year-round in Indiana, with recorded sightings peaking in March–May, with a smaller rise in September.

Occurrence map

Where Tricolored Bat has been recorded in Indiana

35 records mapped · zoom and drag to explore

35 Indiana records mapped

Where it's recorded in Indiana

CountyRecords
Lawrence County 8
Crawford County 5
Orange County 4
Monroe County 4
Hendricks County 3
Martin County 2
Washington County 2
Marion County 1
Greene County 1
Jefferson County 1
Harrison County 1
Owen County 1
2 other counties 4

The complete county distribution, spread across 14 Indiana counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Indiana tricolored-bat records reflect a species that hibernates in caves and mines and uses forested waterways during the active season, making southern Indiana karst especially important context beyond northern sites such as Indiana Dunes. The February–May reporting peak overlaps late hibernation and spring emergence, when monitored roosts produce more detections.

The 36 iNaturalist records document encounters, not tricolored-bat abundance. Cave access is restricted, handling records are specialized, and flying bats are difficult to identify visually, so the map is heavily shaped by monitoring locations and cannot compare populations across Indiana.

Occurrence data from iNaturalist and GBIF.

More mammals in Indiana 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