Spiders in Idaho
Idaho has 56 spider species on record, each with at least 10 GBIF records in the state, and 522 licensed records in all. The most recorded are the bold jumper, the zebra spider and the western lynx spider. Medically significant: the western black widow.
Widow spiders in Idaho
One species of this group is listed for Idaho: the western black widow, with 16 records (3% of the state's spider records).
Jumping spiders in Idaho
Jumping spiders dominate the spider record of Idaho: 20 species and 46% of all records. The most recorded is the bold jumper (72), ahead of the zebra spider (52).
Plus eight: Attulus ammophilus, Brilliant jumping spider, Proszynski's jumping spider, Sassacus papenhoei, Habronattus festus, Hirsute paradise spider, Salticus peckhamae, Thick-spined jumping spider.
Observation records of the bold jumper in Idaho run mostly March through October, peaking in April; most licensed records come from Ada County, Latah County and Nez Perce County. Observation records of the zebra spider in Idaho run mostly March through September, peaking in June; most licensed records come from Ada County, Latah County and Canyon County. Observation records of the California flattened jumping spider in Idaho run mostly March through August, peaking in June; most licensed records come from Ada County, Latah County and Kootenai County.
Wolf spiders in Idaho
Wolf spiders: four species are listed for Idaho, with 16 records (3% of the state's spider records). The most recorded is the Groenland wolf spider (12), ahead of the McCook's split wolf spider (4).
Orb weavers in Idaho
Orb weavers: eleven species are listed for Idaho, with 31 records (6% of the state's spider records). The most recorded is the western spotted orbweaver (12), ahead of the cat-faced spider (7).
Long-jawed orb weavers in Idaho
One species of this group is listed for Idaho: the versicolor long-jawed orbweaver, with 0 records (0% of the state's spider records).
Fishing and nursery web spiders in Idaho
One species of this group is listed for Idaho: the sixspotted fishing spider, with 2 records (0.4% of the state's spider records).
Crab spiders in Idaho
Crab spiders: four species are listed for Idaho, with 49 records (9% of the state's spider records). The most recorded is the goldenrod crab spider (40), ahead of the Eurasian running crab spider (9).
Observation records of the goldenrod crab spider in Idaho run mostly May through July, peaking in July; most licensed records come from Latah County, Custer County and Kootenai County.
Cobweb spiders in Idaho
Cobweb spiders are a small part of the spider record here: three species with 3% of records between them. The most recorded is the triangulate bud spider (9), ahead of the common candy-striped spider (5).
Funnel weavers and grass spiders in Idaho
Funnel weavers and grass spiders are a small part of the spider record here: two species with 2% of records between them. The most recorded is the hobo spider (9), ahead of the barn funnel weaver (1).
Lynx spiders in Idaho
One species of this group is listed for Idaho: the western lynx spider, with 49 records (9% of the state's spider records).
Observation records of the western lynx spider in Idaho run mostly March through July, peaking in May; most licensed records come from Latah County, Ada County and Canyon County.
Sheetweb and dwarf spiders in Idaho
Sheetweb and dwarf spiders are a small part of the spider record here: two species with 0.8% of records between them. The most recorded is the filmy dome spider (4), ahead of the sierra dome spider (0).
Ground and sac spiders in Idaho
One species of this group is listed for Idaho: the northern yellow sac spider, with 2 records (0.4% of the state's spider records).
Other spiders in Idaho
Other spiders are a small part of the spider record here: five species with 2% of records between them. The most recorded is Dysdera crocata (10), ahead of Antrodiaetus pugnax (1).
Where in Idaho are spiders recorded most?
Ada County dominates: 38% of the state's licensed spider records come from it alone, and the top five counties hold 75%. 34 of Idaho's 44 counties have at least one licensed spider record.
| # | County | Records | Share |
|---|---|---|---|
| 1 | Ada County | 199 | 38.1% |
| 2 | Latah County | 138 | 26.4% |
| 3 | Owyhee County | 24 | 4.6% |
| 4 | Canyon County | 15 | 2.9% |
| 5 | Kootenai County | 13 | 2.5% |
| 6 | Nez Perce County | 12 | 2.3% |
| 7 | Bingham County | 12 | 2.3% |
| 8 | Valley County | 11 | 2.1% |
| 9 | Boise County | 11 | 2.1% |
| 10 | Custer County | 10 | 1.9% |
| 11 | Bonner County | 8 | 1.5% |
| 12 | Bear Lake County | 7 | 1.3% |
When do spiders come out in Idaho?
Observation records of spiders in Idaho run mostly March through September, peaking in May with 19% of them. Winter (December to February) holds 5% of the records. The sharpest rise comes from April to May.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2% | 2% | 6% | 9% | 19% | 18% | 16% | 10% | 13% | 4% | 1% | 1% |
Spiders: Idaho compared with its neighbors
Idaho ranks 47th of 50 states by the number of spider species listed; Texas leads with 386 species.
Of the six states bordering Idaho, Washington, Utah, Oregon, Montana and Wyoming list more spider species (Idaho: 56 species; Washington 157, Utah 97, Oregon 88, Montana 75, Wyoming 68, Nevada 47).
What spiders are in Idaho? All 56 species
Ranked by licensed records in Idaho. Species with a profile page are linked.
| # | Species | Family | Records | Share |
|---|---|---|---|---|
| 1 | Bold jumper Phidippus audax | Salticidae | 72 | 13.8% |
| 2 | Zebra spider Salticus scenicus | Salticidae | 52 | 10.0% |
| 3 | Western lynx spider Oxyopes scalaris | Oxyopidae | 49 | 9.4% |
| 4 | Goldenrod crab spider Misumena vatia | Thomisidae | 40 | 7.7% |
| 5 | California flattened jumping spider Platycryptus californicus | Salticidae | 39 | 7.5% |
| 6 | Western black widow venomous Latrodectus hesperus | Theridiidae | 16 | 3.1% |
| 7 | Groenland wolf spider Pardosa groenlandica | Lycosidae | 12 | 2.3% |
| 8 | Western spotted orbweaver Neoscona oaxacensis | Araneidae | 12 | 2.3% |
| 9 | Pelegrina aeneola | Salticidae | 11 | 2.1% |
| 10 | Dysdera crocata | Dysderidae | 10 | 1.9% |
| 11 | Habronattus amicus | Salticidae | 10 | 1.9% |
| 12 | Phidippus octopunctatus | Salticidae | 10 | 1.9% |
| 13 | Eurasian running crab spider Philodromus dispar | Philodromidae | 9 | 1.7% |
| 14 | Hobo spider Eratigena agrestis | Agelenidae | 9 | 1.7% |
| 15 | Triangulate bud spider Steatoda triangulosa | Theridiidae | 9 | 1.7% |
| 16 | Cat-faced spider Araneus gemmoides | Araneidae | 7 | 1.3% |
| 17 | Habronattus americanus | Salticidae | 6 | 1.1% |
| 18 | Johnson jumper Phidippus johnsoni | Salticidae | 6 | 1.1% |
| 19 | Phidippus nikites | Salticidae | 6 | 1.1% |
| 20 | Bronze jumper Eris militaris | Salticidae | 5 | 1.0% |
| 21 | Buttonhook leafbeetle jumping spider Sassacus vitis | Salticidae | 5 | 1.0% |
| 22 | Common candy-striped spider Enoplognatha ovata | Theridiidae | 5 | 1.0% |
| 23 | Desert red jumping spider Phidippus ardens | Salticidae | 4 | 0.8% |
| 24 | Filmy dome spider Neriene radiata | Linyphiidae | 4 | 0.8% |
| 25 | McCook's split wolf spider Schizocosa mccooki | Lycosidae | 4 | 0.8% |
| 26 | Attulus ammophilus | Salticidae | 3 | 0.6% |
| 27 | Banded garden spider Argiope trifasciata | Araneidae | 3 | 0.6% |
| 28 | Brilliant jumping spider Phidippus clarus | Salticidae | 3 | 0.6% |
| 29 | Garden spider Araneus diadematus | Araneidae | 3 | 0.6% |
| 30 | Proszynski's jumping spider Evarcha proszynskii | Salticidae | 3 | 0.6% |
| 31 | Sixspotted orbweaver Araniella displicata | Araneidae | 3 | 0.6% |
| 32 | Northern yellow sac spider Cheiracanthium mildei | Cheiracanthiidae | 2 | 0.4% |
| 33 | Sassacus papenhoei | Salticidae | 2 | 0.4% |
| 34 | Sixspotted fishing spider Dolomedes triton | Pisauridae | 2 | 0.4% |
| 35 | Antrodiaetus pugnax | Antrodiaetidae | 1 | 0.2% |
| 36 | Barn funnel weaver Tegenaria domestica | Agelenidae | 1 | 0.2% |
| 37 | Cone-shaped orbweaver Cyclosa conica | Araneidae | 1 | 0.2% |
| 38 | False black widow Steatoda grossa | Theridiidae | 1 | 0.2% |
| 39 | Habronattus festus | Salticidae | 1 | 0.2% |
| 40 | Hirsute paradise spider Habronattus hirsutus | Salticidae | 1 | 0.2% |
| 41 | Longbodied cellar spider Pholcus phalangioides | Pholcidae | 1 | 0.2% |
| 42 | Nordmann's orbweaver spider Araneus nordmanni | Araneidae | 1 | 0.2% |
| 43 | Northern orb weaver Aculepeira packardi | Araneidae | 1 | 0.2% |
| 44 | Salticus peckhamae | Salticidae | 1 | 0.2% |
| 45 | Thick-spined jumping spider Tutelina similis | Salticidae | 1 | 0.2% |
| 46 | Carolina wolf spider Hogna carolinensis | Lycosidae | 0 | 0.0% |
| 47 | Common foldingdoor spider Antrodiaetus pacificus | Antrodiaetidae | 0 | 0.0% |
| 48 | Fierce orbweaver Araneus saevus | Araneidae | 0 | 0.0% |
| 49 | Koch's wolf spider Alopecosa kochi | Lycosidae | 0 | 0.0% |
| 50 | Oblong running spider Tibellus oblongus | Philodromidae | 0 | 0.0% |
| 51 | Ornamental orbweaver Larinioides patagiatus | Araneidae | 0 | 0.0% |
| 52 | Shamrock orbweaver Araneus trifolium | Araneidae | 0 | 0.0% |
| 53 | Sierra dome spider Neriene litigiosa | Linyphiidae | 0 | 0.0% |
| 54 | Spitting spider Scytodes thoracica | Scytodidae | 0 | 0.0% |
| 55 | Utah crab spider Bassaniana utahensis | Thomisidae | 0 | 0.0% |
| 56 | Versicolor long-jawed orbweaver Tetragnatha versicolor | Tetragnathidae | 0 | 0.0% |
Related pages
GBIF records read 2026-09-29. Listed: any license. Counted: CC0/CC BY only. How we count.