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Project Noah Nature School
Harmonia axyridis
The Multicolored Asian Lady Beetle, (Harmonia axyridis), is a large coccinellid beetle. Its colour ranges from yellow-orange to black, and the number of spots between 0 and 22. It is native to eastern Asia, but has been introduced to North America and Europe to control aphids and scale insects. It is now common, well known and spreading in these regions.
These beetles use pheromones to "call" each other, allowing for the large gatherings that are often seen in the Autumn. They often congregate in sunlit areas because of the heat available, so even on fairly cold winter days, some of the hibernating beetles will "wake up" because of solar heating.
I also found a Lady Beetle larva. http://www.projectnoah.org/spottings/130...... And a Lady Beetle pupal stage. http://www.projectnoah.org/spottings/128...... (The faded spots were not visible with the naked eye and the darker spots weren't that easy for me to see either but were visible on this porch light visitor. I'm not sure if this is a Multi-colored Asian or something else.)
Spotted on Nov 10, 2012
Submitted on Nov 10, 2012
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