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Nature in L.A.

Showing posts with label : black widow

September 22, 2012

Q: What are Those Miniature Spiky Puffballs? A: Brown Widow Egg Sacs

Earlier this week, staff found some small circular egg cases on a gate in the North Campus. Upon closer inspection we realized they were brown widow, Latrodectus geometricus, egg sacs. But how did we know this?
Earlier this week, staff found some small circular egg cases on a gate in the North Campus. Upon closer inspection we realized they were brown widow, Latrodectus geometricus, egg sacs. But how did we know this?
 
Two egg sacs, each containing about 100 eggs,
notice the geometric design.
 
...