Bug FAQFalse Chinch Bug
Nysius raphanus · Order: Hemiptera · Family: Lygaeidae
Source: Wikipedia
False chinch bugs are tiny, no larger than 1⁄8 inch. They are grey-brown with mostly transparent wings and can emit a foul odor. In large numbers they can cause noticeable damage to plants.
Source: Wikipedia
How to recognize it
Their bodies are grey to brown, the wings are largely clear, and they can release a stink-like smell.
Source: Wikipedia
Size
Adults measure up to about 1⁄8 inch long.
Source: Wikipedia
Is it a pest in the house?
In large populations they can become a pest by damaging garden plants.
Source: Wikipedia
What it eats
When present in high numbers they can cause significant plant damage.
Source: Wikipedia
Life cycle
They develop through several wingless nymph stages that look like small adults.
Source: Wikipedia
Where it comes from
They are native to North America.
Source: Wikipedia
Where it is found in the US
Recorded in 16 of 51 states and DC. Most records: New Mexico, Arizona, California, Colorado, Texas, Florida, Georgia, Utah.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in Canada. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
How can I identify a false chinch bug?
Look for a very small (≤1⁄8 inch) grey-brown bug with mostly transparent wings that may emit a foul odor.
Source: Wikipedia
Do false chinch bugs damage plants?
Yes, when they occur in high numbers they can cause significant damage to garden plants and crops.
Source: Wikipedia
What is the life cycle of a false chinch bug?
They have no larval stage; instead they pass through several nymph stages that resemble adults but lack wings.
Source: Wikipedia
Same family (Lygaeidae)
Large Milkweed BugOncopeltus fasciatus
Small Milkweed BugLygaeus kalmii
False Milkweed BugLygaeus turcicus
Indian Milkweed BugSpilostethus pandurusDamages trees, gardens or crops
Black-and-Red BugLygaeus equestris
Harlequin bug (Spilostethus saxatilis)Spilostethus saxatilisDamages trees, gardens or cropsSources
- Wikipedia: https://en.wikipedia.org/wiki/Nysius_raphanus
Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia
Text written 2026-10-25 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-25.