I found a blue woodbug in the garden today. My interest is peaked! The woodbugs turn blue or purple when they're sick. Their blood turns blue when oxygenated due to hemocyanin in the blood.

seen from Hong Kong SAR China
seen from Malaysia
seen from United States
seen from Japan

seen from Germany
seen from United States

seen from United States
seen from Argentina

seen from Japan

seen from United States

seen from Poland

seen from United States

seen from United States
seen from Germany
seen from South Korea
seen from Russia

seen from Malaysia
seen from United States

seen from Malaysia
seen from Sweden
I found a blue woodbug in the garden today. My interest is peaked! The woodbugs turn blue or purple when they're sick. Their blood turns blue when oxygenated due to hemocyanin in the blood.