8 Types of Wolf Spiders in Montana

8 types of wolf spiders have a verified observation record in Montana. The most frequently recorded are Tigrosa grandis, McCook's Split Wolf Spider and Carolina Wolf Spider. Here is the full list, ranked by how often each is reported on iNaturalist.

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8 types of wolf spiders have a verified observation record in Montana. The most frequently recorded are Tigrosa grandis, McCook's Split Wolf Spider and Carolina Wolf Spider. Here is the full list, ranked by how often each is reported on iNaturalist.

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Verified species, source iNaturalist

8 types of wolf spiders recorded in Montana

8 wolf spider species have a verified observation record in Montana, each with at least 10 confirmed sightings. The full list, ranked by how often each is recorded, is below.

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    1

    Tigrosa grandis

    Tigrosa grandis

    94 records
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    2

    McCook's Split Wolf Spider

    Schizocosa mccooki

    53 records
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    3

    Carolina Wolf Spider

    Hogna carolinensis

    40 records
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    4

    Forest Wolf Spider

    Hogna frondicola

    33 records
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    5

    Koch's Wolf Spider

    Alopecosa kochi

    20 records
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    6

    Shoreline Wolf Spider

    Arctosa littoralis

    18 records
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    7

    Ground wolf spider

    Trochosa terricola

    16 records
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    8

    Spinyrib Wolf Spider

    Alopecosa aculeata

    15 records

Plus 14 more recorded only rarely (fewer than 10 verified sightings). Counts from verified iNaturalist observations.

The Tigrosa grandis (Tigrosa grandis) is the most commonly recorded, with 94 verified observations, about 33% of all wolf spiders reported in Montana. If you spot a wolf spider here, it is statistically most likely to be this one.

Montana also hosts less common wolf spiders such as Tigrosa grandis, McCook's Split Wolf Spider and Carolina Wolf Spider, each recorded fewer than 100 times. These are the species worth a second look when you are out, since a sighting is more notable.