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Trichilogaster signiventris (Girault)

(Life: Kingdom: Metazoa (animals); Phylum: Arthropoda; Class: Hexapoda; Order: Hymenoptera; Superfamily Chalcidoidea; Family Pteromalidae; Subfamily: Ormocerinae; Genus: Trichilogaster)

Perilampella signiventris Girault, 1931.

Epiperilampus adolphi Girault, 1931, synonymy by Bouček (1988).

Coelocybelloides atraticorpus Girault, 1931, synonymy by Bouček (1988).

Trichilogaster_signiventris_SAM-HYM-P043464_female_habitus_dorsal Trichilogaster_signiventris_SAM-HYM-P043464_female_habitus_lateral
Trichilogaster_signiventris_SAM-HYM-P043464_female_body_lateral Trichilogaster_signiventris_SAM-HYM-P043464_female_head_mesosoma_dorsal
Trichilogaster_signiventris_SAM-HYM-P043464_female_head_frontal Trichilogaster_signiventris_SAM-HYM-P043464_female_mesosoma_dorsal
Trichilogaster_signiventris_SAM-HYM-P043464_female_wing Trichilogaster_signiventris_SAM-HYM-P043464_female_labels
Trichilogaster_signiventris_SAM-HYM-P043464_male_habitus_lateral Trichilogaster_signiventris_SAM-HYM-P043464_male_habitus_dorsal
Trichilogaster_signiventris_SAM-HYM-P043464_male_head_mesosoma_lateral Trichilogaster_signiventris_SAM-HYM-P043464_male_head_mesosoma_dorsal
Trichilogaster_signiventris_SAM-HYM-P043464_male_head_frontal Trichilogaster_signiventris_SAM-HYM-P043464_male_labels


Trichilogaster signiventris, female, schematic presentation of colour variation (from Prinsloo & Neser, 2007)


Afrotropical: South Africa (introduced). Australasian: Australia.


Phytophagous bud-gall former on Golden Wattle, Acacia pycnantha (Mimosoidea) (Dennill & Gordon, 1991; Dennill et al. 1999). Also recorded in Australia from galls on Acacia rivalis Bouček (1988). 


Agricultural Research Council leaflet on biology of T. signiventris.


Bouček, Z. 1988. Australasian Chalcidoidea (Hymenoptera) a biosystematic revision of fourteen families, with a reclassification of species. C.A.B. International, Wallingford.

Dennill, G.B., Donnelly, D., Steward, K. & Impson, F.A.C. 1999. Insect agents used for the biological control of Australian Acacia species and Paraserianthes lophantha (Willd.) Nielsen (Fabaceae) in South Africa. African Entomology Memoir 1: 4554.

Dennill, G.B & Gordon, A.J. 1991. Trichilogaster sp. (Hymenoptera: Pteromalidae), a potential biocontrol agent for the weed Acacia pycnantha (Fabaceae). Entomophaga 36: 295301.

Girault, A.A. 1931. A new habit in an old insect, Homo pudicus and new Eurytomidae. Girault, Brisbane.

Neser, O.C. & Prinsloo, G.L. 2005. Trichilogaster signiventris (Hymenoptera: Pteromalidae): a name for the bud-galling biocontrol agent of Acacia pycnantha in South Africa. In: Villet, M. H. (Ed.) Proceedings of the 15th Entomological Congress. 6061. Entomological Society of Southern Africa, Grahamstown.

Prinsloo, G.L. & Neser, O.C. 2007. Revision of the pteromalid wasp genus Trichilogaster Mayr (Hymenoptera: Chalcidoidea): gall-inducers on Australian acacias. African Entomology 15: 161-184.

van Noort, S. & Picker, M. 2011. Wasps, Bees, Ants. Class Insecta, Order Hymenoptera. Pp 140-146. In:  Picker, M. & Griffiths, C. (eds.) Alien & Invasive Animals. A South African perspective. Struik Nature.


Photographs Simon van Noort (Iziko Museums of South Africa). Illustration Prinsloo & Neser 2007.

Web author Simon van Noort (Iziko South African Museum)


Citation: van Noort, S. 2018. WaspWeb: Hymenoptera of the Afrotropical region. URL: www.waspweb.org (accessed on <day/month/year>).

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