Last checked November 3, 2026 against official sources.
This page lists 7 spiders and 1 windscorpion. 2 are venomous by official accounts.
Not every species: no complete official list of Nevada spiders exists, so this page covers the ones state and Extension sources name. How lists are built.
Official sources single out these spiders in Nevada, in their own words:
Venomous. “Black widows are venomous predators, and their bites can produce significant symptoms.” University of Nevada, Reno Extension
2006 Extension. “An aggressive predator, when threatened, this poisonous spider has attacked humans.” University of Nevada Cooperative Extension
Venomous species first, then A to Z. Do not handle them.
Venom: “Only a few, such as the black widow, brown recluse, and hobo spider are dangerously venomous to man.” (University of Nevada Cooperative Extension)
Latrodectus hesperus
Venom: “Black widows are venomous predators, and their bites can produce significant symptoms.” (University of Nevada, Reno Extension)
Habitat: Woodpiles, debris, garages, crawl spaces, porches, and protected outdoor areas around buildings (University of Nevada, Reno Extension)
Aphonopelma spp.
Argiope, Neoscona, Araneus spp.
Venom: “If provoked, they can bite, but they do not have venom glands and are harmless to humans.” (University of Nevada Cooperative Extension)
Records of spiders in Nevada peak in May 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.
Official advice from University of Nevada, Reno Extension:
Yes. The western black widow is found throughout Nevada (University of Nevada Extension). University of Nevada, Reno Extension
“The western black widow (Latrodectus hesperus) is found throughout Nevada.”
Yes. Extension (2006) places hobo spiders in northeast Nevada and says they may be transported elsewhere. University of Nevada Cooperative Extension
“One, the hobo spider is found in northeast Nevada and may be transported into other areas of Nevada.”
Yes. Several Aphonopelma tarantulas live in Nevada; males are more visible in late summer and fall. University of Nevada, Reno Extension
“Nevada is home to several Aphonopelma tarantulas.”
Venom labels come only from official sources and link to them; "Not stated" never means harmless. How labels work.
“Black widows are venomous predators, and their bites can produce significant symptoms.”
“If someone is bitten by a Black Widow spider, remain calm and seek medical attention immediately.”
“They are at peak activity during late summer and fall”
“The western black widow (Latrodectus hesperus) is found throughout Nevada.”
“Nevada is home to several Aphonopelma tarantulas.”
“Only a few, such as the black widow, brown recluse, and hobo spider are dangerously venomous to man.”
“An aggressive predator, when threatened, this poisonous spider has attacked humans.”
“If provoked, they can bite, but they do not have venom glands and are harmless to humans.”
“One, the hobo spider is found in northeast Nevada and may be transported into other areas of Nevada.”
