Reptiles & amphibians · La Saladita, Guerrero

Brown Widow

Latrodectus geometricus

Spanish: Viuda marrón

Brown Widow (Latrodectus geometricus)
Photographed by mkmalik on iNaturalist · CC-BY-SA

Latrodectus geometricus, commonly known as the brown widow, brown button spider, grey widow, brown black widow, house button spider or geometric button spider, is one of the widow spiders in the genus Latrodectus. As such, it is a 'cousin' to the more infamous Latrodectus mactans (black widow). Most often recorded in Jul, Mar, Feb, Jan.

TaxonomyArachnida › Araneae › Theridiidae
Local records4 research-grade observations within about 50 km of La Saladita (the survey box also takes in Zihuatanejo, Ixtapa and Troncones)
Global records29,588 on iNaturalist
Recorded here2020 – 2025
Months recorded near La Saladita
JanFebMarAprMayJunJulAugSepOctNovDec
Recent local sightings

Interactive card with more photos, sounds and similar species Reptiles & amphibians guide iNaturalist Wikipedia

Cite as: “Brown Widow (Latrodectus geometricus) at La Saladita”, La Saladita Field Guide, lasaladita.com/species/latrodectus-geometricus/, updated 2026-09-26. Observation counts and months come from iNaturalist research-grade records within about 50 km of 17.8375°N, 101.7606°W (the survey box also takes in Zihuatanejo, Ixtapa and Troncones); summary text from Wikipedia where present.