Subject: Bolas Spider and egg sacs
Location: Jamul, CA (east of San Diego)
December 6, 2015 1:03 pm
Saw these “blueberries” dangling from chainlink this morning. After looking them up on your site, I went back and took a picture of mama. (Incidentally, this is my second bird-poo disguised find of the season. The first was swallowtail larva the size of my pinky!)
Your images are a wonderful documentation of the distinctive eggs sacs and excellent camouflage of the Bolas Spider, Mastophora cornigera. The Bolas Spider and the Caterpillar of a Giant Swallowtail both benefit from their resemblance to bird droppings.