Subject: Help! What is this bug?
Location: Riverside, California
August 15, 2015 8:56 am
We found this weird bug on our patio and we don’t know what it is. Is it a kind of wasp? We didn’t see any other ones. Can you tell us what is please?
Signature: Hope (6 yrs old)

Thread-Waisted Wasp:  Sphex lucae

Thread-Waisted Wasp: Sphex lucae

Dear Hope,
This is indeed a wasp, more specifically a Thread-Waist Wasp in the family Sphecidae.  These are solitary wasps and they are not aggressive.  We believe your individual is in the genus
Sphex, and though the genus is well represented on our site because of the Great Golden Digger Wasp and the Great Black Wasp, your lovely red and black individual is a different species, probably Sphex lucae, based on the images on BugGuide.  This is a new species for our site.  BugEric has an excellent description of this species.

Location: Riverside, California

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