New Mexico mammals

Chihuahuan Grasshopper Mouse in New Mexico

Onychomys arenicola

Native to New Mexico S3 Vulnerable in New Mexico

Not listed as nonindigenous in New Mexico by USGS NAS; native to its New Mexico 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.

Chihuahuan Grasshopper Mouse in New Mexico, by the numbers

Common in New Mexico 39th most recorded of 176 mammals logged in New Mexico

589 occurrence records

Records from 2000–2026.

589 total records count every New Mexico occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 585 records with a full observation date.

When to look for the Chihuahuan Grasshopper Mouse in New Mexico

Most sightings fall in October.

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

Monthly New Mexico records (table)
MonthRecords
January40
February34
March54
April56
May55
June70
July52
August43
September50
October92
November30
December9

Monthly chihuahuan grasshopper mouse occurrence records (iNaturalist and GBIF) in New Mexico, 2000–2026.

Seasonality

Year-round in New Mexico, with recorded sightings peaking in October, with a smaller rise in April and June.

Occurrence map

Where Chihuahuan Grasshopper Mouse has been recorded in New Mexico

300 records mapped · zoom and drag to explore

298 New Mexico records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
State Trust Land 8
Apache Kid Wilderness 6
Carlsbad Caverns National Park 6
White Sands National Park 3
Lincoln National Forest 1

Protected places with the most chihuahuan grasshopper mouse sightings, from the USGS Protected Areas Database plus named mountain ranges, good spots to look, not a full breakdown, so they don't sum to the total.

Where it's recorded in New Mexico

CountyRecords
Socorro County 299
Doña Ana County 81
Otero County 47
Hidalgo County 46
Eddy County 45
Grant County 20
Bernalillo County 12
Valencia County 11
Lincoln County 9
Sierra County 7
Luna County 6
Torrance County 1
Lea County 1
Other localities 4

The complete county distribution, spread across 13 New Mexico counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

No iNaturalist photos back New Mexico’s record of the Chihuahuan grasshopper mouse. Every one of its 589 documented occurrences here comes from GBIF specimen and survey data, a sign that this nocturnal hunter is confirmed by trap lines and museum vouchers rather than by anyone getting a clear look at it in the field. That fits an animal that stalks insects after dark and rarely sits still long enough to be noticed.

NatureServe ranks the species S3, vulnerable in New Mexico, a step down from its global least-concern status. The gap matters: a species can be secure continent-wide while still under real pressure at the edge of its range, and New Mexico sits near the northern limit of the Chihuahuan Desert grassland this mouse depends on.

Reports rise in spring and again in October, but with data this thin, that pattern reads more like when a handful of surveys happened to run than any real seasonal shift in the population.

Occurrence data from iNaturalist and GBIF.

More mammals in New Mexico 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
  • USGS Protected Areas Databasepublic domainthe named parks, forests, and refuges behind "notable places to look"