Trichilogaster
| Trichilogaster | |
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| Galls of T. acaciaelongifoliae on Acacia longifolia | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Pteromalidae |
| Subfamily: | Ormocerinae |
| Genus: |
Trichilogaster Mayr, 1905 |
| Synonyms | |
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Trichilogaster is a small genus of chalcid wasps in the family Pteromalidae, subfamily Ormocerinae. With one described exception, they all are Australian species that are gall-formers on Australian species of Acacia. The exception is an Arabian species. Apart from its ecological interest, the genus is of practical importance because some of its members are successful biocontrol agents in South Africa at least, where T. acaciaelongifoliae and T. signiventris have been established successfully to control invasive Australian Acacia species, notably Acacia longifolia and Acacia pycnantha.
The species most recently recognised in a revision of the genus are:
"Epiperilampus atra", "Epiperilampus atricorpus" and "Epiperilampus significatus" are now regarded as synonyms of Trichilogaster maideni. In the review, 13 species of documented host plants were listed, comprising one Paraserianthes and 12 Acacia species.
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