You are here:

Entomology (Study of Bugs)/Small red insects in Pasadena CA

Advertisement


Question
Red Pasadena Insects
Red Pasadena Insects  

Red Pasadena Insect closeup
Red Pasadena Insect cl  
Hello - I have attached a pic of some bugs I saw today on one of my potted plants in Pasadena CA.  The body of these insects are are around 1/4 inch long.  they are kind of slow-moving or motionless.  When I googled, they looked a lot like nymphs of milkweed assassin beetles, but apparently those are native to gulf states?

Answer
Hi Angela,

Thanks for the question. You have identified these little nymphs correctly; they are assassin bugs. Assassin bugs live all across North America, but prefer warmer climates. This includes southern CA. They are beneficial for gardens/plants because they are predators of other insects, but FYI they also can bite humans when they are adults so I wouldn't pick them up without gloves.

Best,
Jessica

Entomology (Study of Bugs)

All Answers


Answers by Expert:


Ask Experts

Volunteer


Jessica Mellinger

Expertise

I can answer questions about invertebrates native to California, including insects commonly found in homes. If you have an identification request, please attach a photo to your question.

Experience

I was involved in collection and identification of invertebrates for the United States Geological Survey, Biological Resources Division for six years. Also, I provided these same services intermittently for the UC Davis John Muir Institute of the Environment for many years. I have been a member of AllExperts.com since 2009.

Organizations
Department of the Interior: United States Geological Survey, Davis Field Station; University of California, Davis Aggie Alumni Association; UC Davis Center for Neuroscience; U.S. Department of Veteran's Affairs

Education/Credentials
I have two B.A.'s from the University of California, Davis and two Associate's degrees from Sacramento City College.

Awards and Honors
Special Thanks for Achieving Results award from the Department of the Interior

©2016 About.com. All rights reserved.