Venomous spiders in Michigan
How to recognize them
Black widow Latrodectus mactans, L. variolus, L. hesperus
- Shiny black female with a round abdomen
- Red hourglass or two red marks under the abdomen
- Messy, strong web low to the ground, often in garages, wood piles and water meters
Almost all spiders have venom, but very few can hurt people. We list the ones with medically significant bites plus a few that people often worry about.
Counties with records
- None recorded
- 1 species
- 2
- 3 to 4
- 5 or more
Active months
Rare records
- Rare records Brown recluse 1 open record, latest 2013
Harmless spiders people mistake for them
Quick answers
- Rare records Are there brown recluses in Michigan?
- Lives here Are there black widows in Michigan?
- Not here Are there tarantulas in Michigan?
Questions
How many venomous spiders are in Michigan?
1 species live in the state: Black widow.
Which venomous spiders in Michigan are dangerous?
Black widow: bites or stings need medical care.
More for Michigan
- All venomous animals in Michigan
- Venomous snakes in Michigan
- Scorpions in Michigan
- Centipedes in Michigan