False Chinch Bug
Scientific Name: Nysius raphanus
Order & Family: Hemiptera: Lygaeidae
Size: 3 to 4 mm in length

Natural Habitat
Found widely across North America in grasslands, weed patches, and agricultural fields; often migrates to residential walls and gardens when host weeds dry up.
Diet & Feeding
Feeds on a variety of plants by sucking juices, primarily targeting mustard family (Brassicaceae) plants, but can damage lettuce, potatoes, and sunflowers.
Behavior Patterns
They are known for massive aggregations, often numbering in the thousands, during hot, dry spells. They undergo simple metamorphosis (egg, nymph, adult).
Risks & Benefits
Generally considered a nuisance pest rather than a threat; they do not bite humans or pets and do not damage structures, though they can damage young garden plants through feeding.
Identified on: 3/21/2026