Picture of Latrodectus geometricus (Brown Widow Spider) - Female - Dorsal,Egg sacs Enlarge Picture · Latrodectus geometricus (Brown Widow Spider).
Most spiders create egg sacs that are white or off-white. However, this is not true of all egg sacs. Some eggs sacs are brown, yellow, or even yellowish green.
Some, such as the wolf spider, carry their eggs on their back, making The egg sac of the brown widow spider is round with distinctive spikes, whereas that of.
In the western United States, accurate identification of this spider Egg sac. This is the easiest way to tell a brown widow from a black widow.