Bug FAQLongleaf Wattle Gall Wasp
Trichilogaster acaciaelongifoliae · Order: Hymenoptera · Family: Pteromalidae
Also called: Acacia Longifolia Gall Wasp
It has been released in South Africa and Portugal as a biological control agent to suppress this invasive wattle.
Source: Wikipedia
How to get rid of it
It was introduced to South Africa in 1985 and to Portugal in 2015 to control Acacia longifolia populations.
Source: Wikipedia
Where it lives
It lives on Acacia longifolia, an invasive wattle that it parasitises by forming galls in its buds.
Source: Wikipedia
Where it comes from
The species originates from Australia and belongs to the family Melanosomellidae.
Source: Wikipedia
More photos
Questions people ask
Has this wasp been used for biological control?
Yes, it was released in South Africa and Portugal to help control the invasive wattle.
Source: Wikipedia
Same family (Pteromalidae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Trichilogaster_acaciaelongifoliae
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-22 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.