Plant bug ID
Location: Hyampom, CA
May 25, 2011 1:25 am
I am trying to ID this little guy. It was found in Northern California near the Oregon border. It hasn’t caused any plant damage that I can see.
It resembles a Boxelder bug but has no x marking on its back. Everything else seems the same (color, shape and size).
Do you have any idea what it might be?
Thanks in advance.
Signature: Steve

Bordered Plant Bug

Hi Steve,
Your mistaking this individual for a Boxelder Bug is understandable.  It is a Bordered Plant Bug, most likely
Largus californicus.  According to BugGuide, it feeds upon:  “Mostly plants (flowers, leaves, fruit) from a range of families, with a preference for Lupines. L. californicus is not considered a “pest species” of economic importance.”  We will be going through our archive to find some nice high resolution images of this Bordered Plant Bug to use in our presentation at the Theodore Payne Foundation this Saturday.

Location: California

5 Responses to Bordered Plant Bug

  1. Ginny Milnik says:

    I am trying to find out the name of a shiny black bug that sucks the juice out of raspberries and boysenberries resulting in no crop. They multiply rapidly. They are tiny & red when they lst hatch and turn shiny, shiny black sometimes having a red mark on their back. I have been told to burn anything that was underneath the plant or torch the ground to get rid of them this year. Are there any other suggestions for controlling them?


    The boarder plant bug largus califoricus is in my back yard in shasta lake ca. I was out about 7:00 walking the ground with my small dogs and found a group of twenty or more just randomly walking the drive way we have these wild berry plants that seem to randomly come every everywhere I stayed them and they seem to start running towards me ortho home defense took several sprays and most ran away the wild berry plans never have berries any more with the drought more bugs and insects will be looking for water inside the house any suggestions how to get rid of this problem

  3. Kevin and Dawn says:

    Shady Cove, Oregon we are attempting the dish soap and water for the unwanted guests from the south, will let you know how it works.

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