Chelonus sp., from here.

Belongs within: Braconidae.

The Cheloninae are a cosmopolitan group of braconid wasps endoparasitic on larval Lepidoptera, characterised by the modification of the metasomal tergites into a rigid carapace (Achterberg 1993). The sutures remain visible in the genera Phanerotoma and Phanerotomella but are completely effaced in Ascogaster and Chelonus (Naumann 1991).

Characters (from Achterberg 1993): Hypoclypeal depression absent; postpectal carina complete in front of middle coxae ventrally; first metasomal tergite inserted close to hind coxae, distinctly below dorsal level of propodeum; first and second tergites immovably joined; metasoma forming a rigid carapace.

Cheloninae [Adeliidae]A93
| i. s.: PhanerotomellaN91
| MegascogasterN91
| Paradelius ghesquiereiA93
|--+--Adelius fasciipennisBS23
| `--Phanerotoma [Phanerotomini]BS23
| |--P. australiensis Ashmead 1900A00
| |--P. coccinellae Girault 1924G24
| |--P. pacifica Zettel 1990JG19
| `--P. rufescensA93
`--+--Ascogaster provancheriBS23
|--C. annulipesA71
|--C. basalisMS01
|--C. carbonatorMS01
|--C. erythrogaster Lucas 1849E12
|--C. inanitusMS01
|--C. oculatorA93
|--C. rostratusA93
|--C. rubripes Lucas 1849E12
`--C. sulcatus [=Alysia (Chelonus) sulcatus]G20

*Type species of generic name indicated


[A93] Achterberg, C. van. 1993. Illustrated key to the subfamilies of the Braconidae (Hymenoptera: Ichneumonoidea). Zoologische Verhandelingen 283: 1–189.

[A00] Ashmead, W. H. 1900. Notes on some New Zealand and Australian parasitic Hymenoptera, with descriptions of new genera and new species. Proceedings of the Linnean Society of New South Wales 1900 (3): 327–360.

[A71] Askew, R. R. 1971. Parasitic Insects. Heinemann Educational Books: London.

[BS23] Blaimer, B. B., B. F. Santos, A. Cruaud, M. W. Gates, R. R. Kula, I. Mikó, J.-Y. Rasplus, D. R. Smith, E. J. Talamas, S. G. Brady & M. L. Buffington. 2023. Key innovations and the diversification of Hymenoptera. Nature Communications 14: 1212.

[E12] Evenhuis, N. L. 2012. Publication and dating of the Exploration Scientifique de l’Algérie: Histoire Naturelle des Animaux Articulés (1846–1849) by Pierre Hippolyte Lucas. Zootaxa 3448: 1–61.

[G24] Girault, A. A. 1924. Homo perniciosus and new Hymenoptera. Privately published (reprinted: Gordh, G., A. S. Menke, E. C. Dahms & J. C. Hall. 1979. The privately printed papers of A. A. Girault. Memoirs of the American Entomological Institute 28: 178–181).

[G20] Goldfuss, G. A. 1820. Handbuch der Naturgeschichte vol. 3. Handbuch der Zoologie pt 1. Johann Leonhard Schrag: Nürnberg.

[JG13] James, D. J., P. T. Green, W. F. Humphreys & J. C. Z. Woinarski. 2019. Endemic species of Christmas Island, Indian Ocean. Records of the Western Australian Museum 34 (2): 55–114.

[MS01] Mocsáry, A., & V. Szépligeti. 1901. Hymenopterák [Hymenopteren]. In: Horváth, G. (ed.) Zichy Jenő Gróf Harmadik Ázsiai Utazása [Dritte Asiatische Forschungsreise des Grafen Eugen Zichy] vol. 2. Zichy Jenő Gróf Harmadik Ázsiai Utazásának Állattani Eredményei [Zoologische Ergebnisse der Dritten Asiatischen Forschungsreise des Grafen Eugen Zichy], pp. 121–169. Victor Hornyánszky: Budapest, and Karl W. Hierseman: Leipzig.

[N91] Naumann, I. D. 1991. Hymenoptera (wasps, bees, ants, sawflies). In: CSIRO. The Insects of Australia: A textbook for students and research workers 2nd ed. vol. 2 pp. 916–1000. Melbourne University Press: Carlton (Victoria).


  1. Good evening. In the hymenoptera forum of facebook people told me the wasp in the picture is a cynipoid

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