(Latrodectus variolus)

- Usually not found indoors. May be found in basement window wells, beneath lawn benches and porches, tool sheds, lumber piles, rock piles, trash piles and water meters.
- If found indoors, usually involuntarily carried in and will construct irregular cobwebs in areas not disturbed or frequented.
- Becomes mature in late summer and early fall. Female usually confined to web, hanging upside down making identification easier.
- More likely to bite during egg laying season and will bite when pressed or touched.
- Most venomous bite of any Maryland spider and if bitten, seek medical attention immediately.
- Control by thoroughly cleaning harborage areas, removing all webs, sacs and spiders. Treat directly with synthetic pyrethroid or pyrethin.


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