Chrysolina quadrigemina

Greater St Johns Wort beetle at Mount Mugga Mugga

Chrysolina quadrigemina at Mount Mugga Mugga - 8 Nov 2023
Chrysolina quadrigemina at Mount Mugga Mugga - 8 Nov 2023
Chrysolina quadrigemina at Mount Mugga Mugga - 8 Nov 2023
Chrysolina quadrigemina at Mount Mugga Mugga - 8 Nov 2023
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Identification history

Chrysolina quadrigemina 9 Nov 2023 AlisonMilton
Chrysolina quadrigemina 8 Nov 2023 KumikoCallaway

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User's notes

The area is a field of Hypericum perforatum. There were many of them.

2 comments

Mike wrote:
   8 Nov 2023
These beetles were introduced for biological control. They have a lot of St John's wort to get rid of{
   8 Nov 2023
Thank you, Mike. Do they eat only St John's wort flowers, not other flowers including native ones?

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Location information

Sighting information

Additional information

  • Hypericum perforatum Associated plant
  • 5mm to 12mm Animal size

Species information

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  • Verified by an expert moderator
  • Nearby sighting(s) of same species
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