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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).

Female  
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
Male  
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_colour_variation_Prinsloo&Neser2007

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

Distribution

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

Biology

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.

References

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.

Credits

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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