You also may see a brown widow spider, or Latrodectus geometricus, which is a close relative of black widows. It's tan and ...

A population of adult reproductive female brown widow spiders, Latrodectus geometricus Koch (Araneae: Theridiidae) was collected in North Central Florida. Within weeks, the spiders displayed reduced ...

Brown widow spiders (Latrodectus geometricus) don’t seem to get along with their cousins from the same genus, and over the past few decades scientists have observed brown widow spiders ...

As far as anyone knows for certain, brown widow spiders have only resided in Southern California for a decade or so -- the first in the region was spotted in Torrance in 2003.

The invasive brown widow spider, Latrodectus geometricus, is thought to be native to South Africa, but has moved to several places around the world and made a home there, including the United States, ...

An orange hourglass is typical of the brown widow (Latrodectus geometricus), an invasive species native to Africa. Possibly transplanted in cargo hauled by 18-wheelers, this spider's range in the ...

Tahiti is a popular tourist destination, but one unwanted visitor has decided to make its home there: the brown widow spider (Latrodectus geometricus). A new article has reported the discovery of ...

A brown widow spider, Latrodectus geometricus with the orange hourglass marking clearly visible. Captured and photographed in Los Angeles, California. (credit: Wikimedia Commons) ...

The ovulation of the cosmotropical spider Latrodectus geometricus C. Koch is at one time both cyclic and rhythmic. WE define ‘cycle’ as that phenomenon represented by regular variations of ...

San Diego group works to highlight the role spiders play in a balanced ecosystem San Diego Spider Society founder Randy Supczak held event at Poway’s Walter Andersen Nursery ...