Last checked November 3, 2026 against official sources.
This page lists 6 spiders: 5 from Alabama Cooperative Extension System's Black Widow and Recluses: Avoiding Venomous Spiders of the Southeast and 1 named in other official sources. 5 are venomous by official accounts. 2 are nonnative.
Not every species: no complete official list of Alabama spiders exists, so this page covers the ones state and Extension sources name. How lists are built.
Official sources single out these spiders in Alabama, in their own words:
Venomous. “The venom is classified as a neurotoxin, a compound that affects the nervous system, and no pain is usually associated with the bite.” Alabama Cooperative Extension System
Venomous. “Widow spiders are thought to have one of the most toxic venoms in the order Araneae (spiders).” Alabama Cooperative Extension System
Venomous. “The venom produced by recluse spiders is cytoxic, causing necrosis, or death, of body tissue at the bite area, and there have been reports of kidney failure associated with recluse bites.” Alabama Cooperative Extension System
Venomous. “The venom produced by recluse spiders is cytoxic, causing necrosis, or death, of body tissue at the bite area, and there have been reports of kidney failure associated with recluse bites.” Alabama Cooperative Extension System
Venomous. “The venom produced by recluse spiders is cytoxic, causing necrosis, or death, of body tissue at the bite area, and there have been reports of kidney failure associated with recluse bites.” Alabama Cooperative Extension System
Venomous spiders in the United States. “Venomous spiders found in the United States include the black widow and the brown recluse.” CDC/NIOSH
Venomous species first, then A to Z. Do not handle them.
Latrodectus mactans
Venom: “Widow spiders are thought to have one of the most toxic venoms in the order Araneae (spiders).” (Alabama Cooperative Extension System)
Loxosceles reclusa
Venom: “The venom produced by recluse spiders is cytoxic, causing necrosis, or death, of body tissue at the bite area, and there have been reports of kidney failure associated with recluse bites.” (Alabama Cooperative Extension System)
Loxosceles laeta
Venom: “The venom produced by recluse spiders is cytoxic, causing necrosis, or death, of body tissue at the bite area, and there have been reports of kidney failure associated with recluse bites.” (Alabama Cooperative Extension System)
Loxosceles rufescens
Venom: “The venom produced by recluse spiders is cytoxic, causing necrosis, or death, of body tissue at the bite area, and there have been reports of kidney failure associated with recluse bites.” (Alabama Cooperative Extension System)
Latrodectus variolus
Venom: “Widow spiders are thought to have one of the most toxic venoms in the order Araneae (spiders).” (Alabama Cooperative Extension System)
Trichonephila clavipes
Records of spiders in Alabama peak in April to May and July to September. They show when people record spiders, not how many there are (about month bars).
Call 911 or Poison Help at 1-800-222-1222 right away. Poison Help connects you to your local poison center, any time of day.
Nuisance wildlife: permitted Nuisance Wildlife Control Operators or the WFF district office; Wildlife Section 334-242-3469. Sea turtle strandings 1-866-732-8878. Dolphin and whale strandings 877-942-5343. Manatee sightings 866-493-5803. Invasive carp [email protected] or (256)-353-2634. Outdoor Alabama
Yes. Two widow species inhabit Alabama. Alabama Cooperative Extension System
“Two species of widow spiders inhabit Alabama”
Yes. Collected throughout the state, more common in the northern half. Alabama Cooperative Extension System
“The brown recluse spider has been collected throughout Alabama but is more commonly found in the state’s northern half.”
The species list comes from Black Widow and Recluses: Avoiding Venomous Spiders of the Southeast (Alabama Cooperative Extension System, published 2018-11-28; modified 2026-08-26). 1 more entry comes from other official sources named on each card.
Venom labels come only from official sources and link to them; "Not stated" never means harmless. How labels work.
"Nonnative" and "Invasive" follow the wording of the source list. See invasive species in Alabama.
“Widow spiders are thought to have one of the most toxic venoms in the order Araneae (spiders).”
“The venom is classified as a neurotoxin, a compound that affects the nervous system, and no pain is usually associated with the bite.”
“The venom produced by recluse spiders is cytoxic, causing necrosis, or death, of body tissue at the bite area, and there have been reports of kidney failure associated with recluse bites.”
“Two species of widow spiders inhabit Alabama”
“The brown recluse spider has been collected throughout Alabama but is more commonly found in the state’s northern half.”
“Venomous spiders found in the United States include the black widow and the brown recluse.”
“Reports can be submitted at: [email protected] or by phone at (256)-353-2634.”
.jpg){kind=link}