arachnid
Northern black widow
Latrodectus variolus
VenomousNot fooduncommon
Shiny black, red hourglass or split spots on the belly. Neurotoxic bite. Rarely fatal now, still an ER visit.
A glossy black cobweb spider. The red mark may be a classic hourglass or two triangles. Irregular strong web in woodpiles, meters, and privies.
- Habitat
- Woodpiles, hollow blocks, outbuildings.
- Season
- Warm months; year-round in sheds.
- Size
- Body ~1/2 in
- Field marks
- Red underside mark; shiny black
First aid
ER if bitten — especially children. Ice and stillness on the way. Muscle cramps and pain can be severe. Antivenom exists for bad cases.