What's That Bug? does not endorse extermination

Subject: pupa?
Location: san diego ca.
December 27, 2013 10:32 am
found this on Christmas morning attached to my outdoor umbrella! I’ve looked through countless photos and can’t find it. Can you help ID it. Thanks
Signature: don’t understand queastion

California Mantis Ootheca

California Mantis Ootheca

The signature is the name you would like used when we post images and questions.  This is the Ootheca or Egg Case of a Preying Mantis, and based on the similarity to this image from BugGuide, it is an Ootheca from the native California Mantis, Stagmomantis californica.  The ootheca that are sold by nurseries as organic means of controlling pest species in the garden are generally from non-native Preying Mantids that are larger and more aggressive than our native mantids.  While we applaud the good intentions of gardeners who want to use natural means for pest control, we fear that our native Mantids are being displaced and perhaps eaten by their non-native relatives.  This Ootheca appears to have already hatched into approximately fifty tiny mantids.  Here is a photo from our archives of the hatching Ootheca a different species of Mantis.  We also recently photographed a nymph of a California Mantis in our own Mount Washington, Los Angeles garden. 

What's That Bug? does not endorse extermination
Location: San Diego, California

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