This red spider has set up a web in my yard, in South Eastern, Texas, United States:
The spider itself is about an inch long (2.5 cm), and is predominantly red to brown in color, with red legs, and a very striking white line straight down the center of her back. The web is quite large—at least 4 feet (1.2 m) in diameter. It seems to be nocturnal, as I haven't seen it during the day, yet I've walked into the web (or nearly walked into its web) twice at night. Unfortunately, due to lighting conditions I wasn't able to capture the color particularly well.
I've searched but haven't found a species that looks like this yet.