Trichilogaster acaciaelongifoliae

Trichilogaster acaciaelongifoliae is an Australian bud-galling wasp from the family Pteromalidae that parasitises, among others, Acacia longifolia (long-leaved wattle, or Sydney golden wattle), which has become an invasive pest in several countries. T. acaciaelongifoliae has been introduced into South Africa in 1985 and into Portugal in 2015 as a successful biological control agent of A. longifolia.^[1][2]

Trichilogaster acaciaelongifoliae
Young galls of T. acaciaelongifoliae, still showing abortive flower rudiments.
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Superfamily:	Chalcidoidea
Family:	Pteromalidae
Subfamily:	Ormocerinae
Genus:	Trichilogaster
Species:	T. acaciaelongifoliae
Binomial name
Trichilogaster acaciaelongifoliae (Froggatt, 1892)