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Ecology Fair University of Minnesota Monarch Lab

Abstracts from Holy Martyrs Christian School 2010

Holy Martyrs Christian School
16354 Guadalcanal St NE
Ham Lake, MN 55304

Year: 2010
Teacher(s): Christin Beaurline

Multicolored Asian Lady Beetles' (Harmonia axyridis) Attraction to Light and Heat

Savanna B, Simeon B, Sophia B

We are a group of young scientists who observed dead Multicolored Asian lady beetles on our school's light bulbs.  Our observations made us wonder why they go to lightbulbs and die.  Do lady beetles like the light or heat?  Why do they die?  We tested a sample size of eight beetles to see if they were attracted to light or heat.  We did experiments with water, flashlights, candles, and lightbulbs.  The beetles were attracted to the light but only stayed if it was warm.  We found that the beetles liked the brightest and hottest light source the best (lightbulb).  The heat increased their movements.  Because of the increased movements, they sometimes flew around the lightbult and died before they realized they had touched it.


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