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Goldenrod Crab Spider
Misumena vatia
393 observations
Banded Garden Spider
Argiope trifasciata
387 observations
Invasive
Zebra Jumping Spider
Salticus scenicus
267 observations
Rocky Mountain Maple Felt Mite
Aceria calaceris
189 observations
Johnson's Jumping Spider
Phidippus johnsoni
176 observations
Invasive
Hobo Spider
Eratigena agrestis
167 observations
Invasive
European Harvestman
Phalangium opilio
160 observations
California Flattened Jumping Spider
Platycryptus californicus
127 observations
Western Black Widow
Latrodectus hesperus
118 observations
Cat-faced Orbweaver
Araneus gemmoides
113 observations
Bold Jumping Spider
Phidippus audax
106 observations
Grass Spiders
Agelenopsis
96 observations
Tigrosa grandis
Tigrosa grandis
80 observations
Barn Funnel Weaver
Tegenaria domestica
79 observations
Bronze Jumping Spider
Eris militaris
75 observations
Filmy Dome Spider
Neriene radiata
72 observations
Apache Jumping Spider
Phidippus apacheanus
71 observations
Western Lynx Spider
Oxyopes scalaris
68 observations
Fierce Orbweaver
Araneus saevus
62 observations
Six-spotted Orbweaver
Araniella displicata
57 observations
Yellow Garden Spider
Argiope aurantia
56 observations
Nordmann's Orbweaver Spider
Araneus nordmanni
53 observations
Plum Finger Gall Mite
Eriophyes emarginatae
52 observations
Shamrock Orbweaver
Araneus trifolium
49 observations
Ornamental Orbweaver
Larinioides patagiatus
37 observations
Marbled Purple Jumping Spider
Phidippus purpuratus
32 observations
Rocky Mountain Wood Tick
Dermacentor andersoni
32 observations
Carolina Wolf Spider
Hogna carolinensis
31 observations
Habronattus americanus
Habronattus americanus
31 observations
Conical Trashline Orbweaver
Cyclosa conica
29 observations
Forest Wolf Spider
Hogna frondicola
27 observations
Brilliant Jumping Spider
Phidippus clarus
26 observations
Thanatus
Thanatus
26 observations
Boreal Tufted Jumping Spider
Phidippus borealis
26 observations
Northern Scorpion
Paruroctonus boreus
25 observations
Triangulate Combfoot
Steatoda triangulosa
22 observations
Utah Crab Spider
Bassaniana utahensis
22 observations
Tyrell's Tufted Jumping Spider
Phidippus tyrrelli
21 observations
Common candy-striped spider
Enoplognatha ovata
21 observations
Pelegrina aeneola
Pelegrina aeneola
20 observations
Six-spotted Fishing Spider
Dolomedes triton
20 observations
McCook's Split Wolf Spider
Schizocosa mccooki
16 observations
Invasive
Asiatic Wall Jumping Spider
Attulus fasciger
16 observations
Shoreline Wolf Spider
Arctosa littoralis
15 observations
Proszynski's Jumping Spider
Evarcha proszynskii
13 observations
Oblong Running Spider
Tibellus oblongus
13 observations
American Dog Tick
Dermacentor variabilis
11 observations
Arabesque Orbweaver
Neoscona arabesca
11 observations
Marbled Orbweaver
Araneus marmoreus
10 observations
Habronattus jucundus
Habronattus jucundus
10 observations
Frequently Asked Questions
- The 10 most common arachnids in Montana are:
- Goldenrod Crab Spider (Misumena vatia)
- Banded Garden Spider (Argiope trifasciata)
- Zebra Jumping Spider (Salticus scenicus)
- Rocky Mountain Maple Felt Mite (Aceria calaceris)
- Johnson's Jumping Spider (Phidippus johnsoni)
- Hobo Spider (Eratigena agrestis)
- European Harvestman (Phalangium opilio)
- California Flattened Jumping Spider (Platycryptus californicus)
- Western Black Widow (Latrodectus hesperus)
- Cat-faced Orbweaver (Araneus gemmoides)
- The most observed arachnid in Montana is Goldenrod Crab Spider (Misumena vatia), with 393 recorded observations.
- Some of the most commonly observed invasive arachnids in Montana include:
- Zebra Jumping Spider (Salticus scenicus)
- Hobo Spider (Eratigena agrestis)
- European Harvestman (Phalangium opilio)
- Asiatic Wall Jumping Spider (Attulus fasciger)