Snakes and spiders in Marshall County, Oklahoma
Marshall County, home of Madill, has 17 snake and 17 spider species on record, from 522 licensed snake and 637 spider records. Venomous species here: the broad-banded copperhead, the timber rattlesnake and the eastern copperhead.
Are there venomous snakes or spiders in Marshall County?
Yes. The broad-banded copperhead: 69 licensed records, 38% of all Oklahoma records of it. The timber rattlesnake: 26 licensed records, 22% of all Oklahoma records of it. The eastern copperhead: 21 licensed records, 7% of all Oklahoma records of it.
What snakes are in Marshall County?
In all, 17 snake species are on the Marshall County list. The most recorded are the broad-banded copperhead (69), the diamondback water snake (59) and the plain-bellied watersnake (52).
| # | Species | Records | Share of Oklahoma records |
|---|---|---|---|
| 1 | Broad-banded copperhead venomous Agkistrodon laticinctus | 69 | 38% |
| 2 | Diamondback water snake Nerodia rhombifer | 59 | 12% |
| 3 | Plain-bellied watersnake Nerodia erythrogaster | 52 | 7% |
| 4 | Rough earthsnake Haldea striatula | 35 | 13% |
| 5 | Eastern racer Coluber constrictor | 32 | 6% |
| 6 | DeKay's brown snake Storeria dekayi | 28 | 8% |
| 7 | Flathead snake Tantilla gracilis | 26 | 2% |
| 8 | Timber rattlesnake venomous Crotalus horridus | 26 | 22% |
| 9 | Western ground snake Sonora semiannulata | 26 | 2% |
| 10 | Rough greensnake Opheodrys aestivus | 22 | 6% |
| 11 | Eastern copperhead venomous Agkistrodon contortrix | 21 | 7% |
| 12 | Western rat snake Pantherophis obsoletus | 21 | 4% |
| 13 | Coachwhip Masticophis flagellum | 20 | 4% |
| 14 | Western ribbon snake Thamnophis proximus | 15 | 3% |
| 15 | Texas blind snake Rena dulcis | 14 | 6% |
| 16 | Speckled kingsnake Lampropeltis holbrooki | 12 | 5% |
| 17 | Prairie kingsnake Lampropeltis calligaster | 11 | 5% |
What spiders are in Marshall County?
In all, 17 spider species are on the Marshall County list. The most recorded are the long-jawed orb weaver (38), the striped lynx spider (22) and Dictyna bellans (21). Marshall County holds more than half of all Oklahoma records of the long-jawed orb weaver, Dictyna bellans, the black-banded crab spider and the brush-legged split wolf spider.
| # | Species | Records | Share of Oklahoma records |
|---|---|---|---|
| 1 | Long-jawed orb weaver Tetragnatha laboriosa | 38 | 83% |
| 2 | Striped lynx spider Oxyopes salticus | 22 | 22% |
| 3 | Dictyna bellans | 21 | 95% |
| 4 | Celer crab spider Mecaphesa celer | 18 | 27% |
| 5 | Black-banded crab spider Synema parvulum | 15 | 62% |
| 6 | Brush-legged split wolf spider Schizocosa ocreata | 14 | 70% |
| 7 | Deadly ground crab spider Xysticus funestus | 12 | 75% |
| 8 | Green lynx spider Peucetia viridans | 12 | 13% |
| 9 | Rabid wolf spider Rabidosa rabida | 12 | 7% |
| 10 | Bronze jumper Eris militaris | 6 | 8% |
| 11 | Bold jumper Phidippus audax | 5 | 1% |
| 12 | Furrow orbweaver Larinioides cornutus | 3 | 8% |
| 13 | Familiar jumping spider Platycryptus undatus | 2 | 1% |
| 14 | Shoreline wolf spider Arctosa littoralis | 2 | 3% |
| 15 | Spotted orbweaver Neoscona crucifera | 1 | 1% |
| 16 | Bagheera prosper | — | — |
| 17 | Salticus austinensis | — | — |
What stands out in Marshall County
Species for which Marshall County holds a large share of all Oklahoma records: Dictyna bellans, 95% (21 of 22); the long-jawed orb weaver, 83% (38 of 46); the brush-legged split wolf spider, 70% (14 of 20); the black-banded crab spider, 62% (15 of 24); the broad-banded copperhead, 38% (69 of 181); the celer crab spider, 27% (18 of 66); the striped lynx spider, 22% (22 of 98); the timber rattlesnake, 22% (26 of 116).
Common in Oklahoma, not on the Marshall County list
Among the snakes most recorded across Oklahoma, these do not reach the county list: the ring-necked snake (869 statewide), the lined snake (480 statewide), the northern cottonmouth (429 statewide) and the western diamondback rattlesnake (417 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 Oklahoma, these do not reach the county list: the black-and-yellow argiope (208 statewide), the dimorphic jumper (150 statewide), the flea jumping spider (144 statewide), the brown recluse (137 statewide) and the Texas brown tarantula (75 statewide). Few records here can mean the species is rare in the county, or that few people have looked.
Harmless lookalikes in Marshall County
Copperheads are on the county list, and so are harmless species often taken for them: the plain-bellied watersnake. No cottonmouths reach the county list, but the northern cottonmouth is on the Oklahoma list: treat any snake like it as venomous until identified. Harmless species often taken for them here: the diamondback water snake and the plain-bellied watersnake.
Marshall County among Oklahoma counties
By licensed snake records Marshall County ranks 7th of 77 Oklahoma counties with any.
Other Oklahoma counties with their own page: Tulsa County, Comanche County, LeFlore County, Cleveland County, McCurtain County, Okmulgee County, Rogers County and Atoka County.
The whole state: venomous species in Oklahoma, all snakes, all spiders.
GBIF records read 2026-09-29. Listed: any license. Counted: CC0/CC BY only. How we count.