2 Types of Black Widows in New Mexico

2 types of black widows have a verified observation record in New Mexico. The most frequently recorded are Western Black Widow and Brown Widow. Here is the full list, ranked by how often each is reported on iNaturalist.

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2 types of black widows have a verified observation record in New Mexico. The most frequently recorded are Western Black Widow and Brown Widow. Here is the full list, ranked by how often each is reported on iNaturalist.

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Real sighting data, source iNaturalist

2,076 verified observations on iNaturalist of black widow have been recorded in New Mexico, most often in September, August, July.

When black widow are recorded in New Mexico

Verified species, source iNaturalist

2 types of black widows recorded in New Mexico

2 black widow species have a verified observation record in New Mexico, each with at least 10 confirmed sightings. The full list, ranked by how often each is recorded, is below.

1 of the 2 shown is recorded as introduced to New Mexico rather than native.

  • No openly licensed photo yet
    1

    Western Black Widow

    Latrodectus hesperus

    1,902 recordsNative
  • No openly licensed photo yet
    2

    Brown Widow

    Latrodectus geometricus

    23 recordsIntroduced

Plus 1 more recorded only rarely (fewer than 10 verified sightings). Counts from verified iNaturalist observations.

The Western Black Widow (Latrodectus hesperus) is the most commonly recorded, with 1,902 verified observations, about 99% of all black widows reported in New Mexico. If you spot a black widow here, it is statistically most likely to be this one.

Not every one of these is originally from here. Brown Widow is recorded by iNaturalist as introduced in New Mexico rather than native, so it arrived with human help rather than on its own.