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Snakes and spiders in Champaign County, Illinois

Champaign County, home of Urbana, has 5 snake and 47 spider species on record, from 82 licensed snake and 4,501 spider records. Venomous species here: the brown recluse.

5snake species
47spider species
1venomous
Bitten in Champaign County? Call 911 for a venomous snakebite or any bite with trouble breathing. For advice on any bite or sting, call Poison Help at 1-800-222-1222 (free, 24/7, U.S.-wide). Do not cut the wound, suck out venom or use a tourniquet. General information, not medical advice. Do not handle or try to identify a snake or spider by this page; if unsure, treat it as venomous.

Are there venomous snakes or spiders in Champaign County?

Yes. The brown recluse: 14 licensed records, 4% of all Illinois records of it.

What snakes are in Champaign County?

In all, 5 snake species are on the Champaign County list. The most recorded are the plains garter snake (39), the northern water snake (16) and the DeKay's brown snake (10).

#SpeciesRecordsShare of Illinois records
1Plains garter snake
Thamnophis radix
3916%
2Northern water snake
Nerodia sipedon
167%
3DeKay's brown snake
Storeria dekayi
103%
4Common garter snake
Thamnophis sirtalis
82%
5Eastern fox snake
Pantherophis vulpinus
78%
Source: GBIF records located in Champaign County (GADM level 2), read 2026-09-29. Listed from records under any license; counts are CC0/CC BY only.

When are snakes out in Champaign County?

Observation records of snakes in Champaign County run mostly March through August, peaking in May with 30% of them; across Illinois the peak is October.

January: 0 observation records (0%)JanFebruary: 0 observation records (0%)FebMarch: 14 observation records (23%)Mar23%April: 11 observation records (18%)Apr18%May: 18 observation records (30%)May30%June: 5 observation records (8%)Jun8%July: 3 observation records (5%)JulAugust: 4 observation records (7%)Aug7%September: 3 observation records (5%)SepOctober: 2 observation records (3%)OctNovember: 1 observation record (2%)NovDecember: 0 observation records (0%)Dec

What spiders are in Champaign County?

In all, 47 spider species are on the Champaign County list. The most recorded are the bold jumper (103), the zebra spider (58) and the brilliant jumping spider (43). Champaign County holds more than half of all Illinois records of the Asian wall jumper, Tibellus duttoni, the longbodied cellar spider and Cyclosa turbinata.

#SpeciesRecordsShare of Illinois records
1Bold jumper
Phidippus audax
10330%
2Zebra spider
Salticus scenicus
5834%
3Brilliant jumping spider
Phidippus clarus
4331%
4Asian wall jumper
Attulus fasciger
4151%
5Spotted orbweaver
Neoscona crucifera
4026%
6Familiar jumping spider
Platycryptus undatus
3732%
7
Pardosa saxatilis
306%
8Triangulate bud spider
Steatoda triangulosa
3042%
9Furrow orbweaver
Larinioides cornutus
2840%
10Orchard orbweaver
Leucauge venusta
2826%
11Pennsylvania grass spider
Agelenopsis pennsylvanica
2743%
12
Tibellus duttoni
2456%
13Whitebanded crab spider
Misumenoides formosipes
2422%
14Banded garden spider
Argiope trifasciata
2115%
15Longbodied cellar spider
Pholcus phalangioides
1966%
16
Schizocosa bilineata
1813%
17
Cyclosa turbinata
1768%
18Parson spider
Herpyllus ecclesiasticus
1625%
19Arabesque orbweaver
Neoscona arabesca
1411%
20Brown recluse venomous
Loxosceles reclusa
144%
21Lance wolf spider
Schizocosa avida
1412%
22Broad-faced sac spider
Trachelas tranquillus
1235%
23Spined micrathena
Micrathena gracilis
1111%
24American green crab spider
Misumessus oblongus
1020%
25
Paraphidippus aurantius
1018%
26Striped lynx spider
Oxyopes salticus
1013%
27Wetland giant wolf spider
Tigrosa helluo
107%
28Black-and-yellow argiope
Argiope aurantia
97%
29Boreal combfoot
Steatoda borealis
832%
30
Dysdera crocata
816%
31Nursery web spider
Pisaurina mira
87%
32Peppered jumper
Pelegrina galathea
712%
33Sixspotted orbweaver
Araniella displicata
730%
34Barn funnel weaver
Tegenaria domestica
617%
35Common house spider
Parasteatoda tepidariorum
623%
36Dark fishing spider
Dolomedes tenebrosus
66%
37Dimorphic jumper
Maevia inclemens
611%
38Bronze jumper
Eris militaris
410%
39Flea jumping spider
Naphrys pulex
47%
40Putnam's jumper
Phidippus putnami
414%
41Thin-spined jumping spider
Tutelina elegans
413%
42Marbled orbweaver
Araneus marmoreus
38%
43Rabid wolf spider
Rabidosa rabida
312%
44Western lynx spider
Oxyopes scalaris
327%
45White-jawed jumping spider
Hentzia mitrata
39%
46Sixspotted fishing spider
Dolomedes triton
24%
47White-banded fishing spider
Dolomedes albineus
——
Source: GBIF records located in Champaign County (GADM level 2), read 2026-09-29. Listed from records under any license; counts are CC0/CC BY only.

When are spiders out in Champaign County?

Observation records of spiders in Champaign County run mostly March through September, peaking in August with 17% of them; across Illinois the peak is September.

January: 4 observation records (1%)JanFebruary: 3 observation records (1%)FebMarch: 27 observation records (5%)MarApril: 86 observation records (16%)Apr16%May: 92 observation records (17%)May17%June: 66 observation records (12%)Jun12%July: 56 observation records (10%)Jul10%August: 94 observation records (17%)Aug17%September: 81 observation records (15%)Sep15%October: 25 observation records (5%)OctNovember: 12 observation records (2%)NovDecember: 4 observation records (1%)Dec

What stands out in Champaign County

Species for which Champaign County holds a large share of all Illinois records: Cyclosa turbinata, 68% (17 of 25); the longbodied cellar spider, 66% (19 of 29); Tibellus duttoni, 56% (24 of 43); the Asian wall jumper, 51% (41 of 80); the Pennsylvania grass spider, 43% (27 of 63); the triangulate bud spider, 42% (30 of 72); the furrow orbweaver, 40% (28 of 70); the broad-faced sac spider, 35% (12 of 34).

Common in Illinois, not on the Champaign County list

Among the snakes most recorded across Illinois, these do not reach the county list: the northern cottonmouth (259 statewide), the eastern racer (129 statewide), the ring-necked snake (87 statewide), the eastern rat snake (86 statewide), the eastern wormsnake (85 statewide) and the prairie kingsnake (82 statewide). Few records here can mean the species is rare in the county, or that few people have looked.

Among the spiders most recorded across Illinois, these do not reach the county list: Piratula minuta (208 statewide), the pale sheetweb weaver (196 statewide), the brush-legged split wolf spider (192 statewide), the tan crab spider (187 statewide), the shiny wolf spider (170 statewide) and Trochosa ruricola (157 statewide). Few records here can mean the species is rare in the county, or that few people have looked.

Harmless lookalikes in Champaign County

No copperheads reach the county list, but the eastern copperhead is on the Illinois list: treat any snake like it as venomous until identified. Harmless species often taken for them here: the northern water snake. No cottonmouths reach the county list, but the northern cottonmouth is on the Illinois list: treat any snake like it as venomous until identified. Harmless species often taken for them here: the northern water snake. No rattlesnakes reach the county list, but the eastern massasauga and the timber rattlesnake are on the Illinois list: treat any snake like them as venomous until identified. Harmless species often taken for them here: the eastern fox snake. No widow spiders reach the county list, but the southern black widow and the northern black widow are on the Illinois list: treat any spider like them as venomous until identified. Harmless species often taken for them here: the triangulate bud spider, the boreal combfoot and the common house spider. Recluse spiders are on the county list, and so are harmless species often taken for them: the Pennsylvania grass spider and the longbodied cellar spider.

Champaign County among Illinois counties

By licensed snake records Champaign County ranks 10th of 90 Illinois counties with any.

Other Illinois counties with their own page: Union County, Cook County, Will County, Jo Daviess County, Mason County, Iroquois County, Effingham County and Lee County.

The whole state: venomous species in Illinois, all snakes, all spiders.

GBIF records read 2026-09-29. Listed: any license. Counted: CC0/CC BY only. How we count.

About these numbers

A species is listed for a state once GBIF holds at least 10 records of it located inside the state by coordinates, under any license. Every count, share, month and county shown is computed only from records published under CC0 or CC BY, so a listed species can show few or no counted records. Monthly patterns show when people record snakes and spiders, which also reflects when people are outdoors. Venomous status follows taxonomy: pit vipers and coral snakes; widow and recluse spiders; the Arizona bark scorpion. Records filed under older names count for the species they belong to today. Full methodology.