1. small red mites that bite humans and cause itching, especially chiggers
Usage: informal; regional

Examples

• After walking through the tall grass, I was covered in redbug bites.
• The children came back from the field scratching at redbug welts on their legs.
• We sprayed insect repellent to avoid redbugs during our hike.
• Redbugs are most active in warm, humid weather.
• The doctor recommended calamine lotion for the redbug bites.