It has been introduced into South Africa, where the golden wattle has become an invasive pest.

American entomologist Alexandre Arsène Girault described the species as Perilampella signiventris in 1931.

[3] Wasps from Lake Natimuk in Victoria were transported and released in Western Cape in 1987 and as no galls were seen the first summer, a second transfer — this time from Mount Compass, South Australia — was made in 1992 as scientists suspected the first cohort might have been incompatible with populations of golden wattle in Africa.

[2] The eggs are laid by short-lived adult wasps into buds of flower heads in the summer, before hatching in May and June when the larvae induce the formation of the grape-like galls and prevent flower development.

[3] It is possible that the galls also reduce the resilience of the host plants by absorbing nutrients and hence starving them.