Bug FAQClustered Gall Wasp
Andricus brunneus · Order: Hymenoptera · Family: Cynipidae
They live along the Pacific Coast of North America and the females emerge in autumn.
Source: Wikipedia
Size
Adults measure roughly 3 mm (0.12 in) in length.
Source: Wikipedia
Where it lives
It is found along the Pacific Coast of North America.
Source: Wikipedia
When you see it
Adult females emerge in autumn.
Source: Wikipedia
Where it comes from
Its native range is the Pacific Coast of North America.
Source: Wikipedia
Where it is found in the US
Recorded in 48 of 51 states and DC. Most records: California, Texas, Virginia, Oregon, Florida, Massachusetts, Illinois, Ohio.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America; native in United States. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
How big are adult clustered gall wasps?
They are about 3 mm (0.12 in) long and brown to reddish-brown.
Source: Wikipedia
Same family (Cynipidae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Andricus_brunneus
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.