Chrysolina americana (Rosemary beetle)

Last update: 24 April 2021


Common

LOCATION: Krimpen aan den IJssel, garden

OBSERVATION:
2020-VIII-09


A remarkable scene, or better scenes, in the Rosemary plant. During the heat wave in August some clusters of Rosemary beetles (Chrysolina americana) and Seven-spotted ladybird (Coccinella septempunctata) beetles huddled together.
In total I’ve counted seven clusters. I’ve never seen this behaviour and I’m not sure it is related to the heat, so I’ll check again especially on cooler days.

Rosemary beetle (Chrysolina americana) & Seven-spotted ladybird (Coccinella septempunctata), on Rosemary (Rosmarinus officinalis))

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