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Key to Nordic Acaenitinae
Acaenitinae
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Ichneumonoidea
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Ichneumonidae
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Acaenitinae
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Taxa:
Metasoma
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1. Metasoma black.
2. Metasoma with at least one tergite predominantly red.
3. Metasoma black with a white apical stripe on the first and second tergites.
Ovipositor
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1. Ovipositor longer than or equal to metasoma.
2. Ovipositor shorter than metasoma.
Areolet
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1. Areolet closed.
2. Areolet open distally.
3. Areolet open proximally.
Notauli
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Notauli present.
Notauli absent or very weak.
Claws
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Claws on all tarsi with a subapical tooth.
Claws on the front and middle tarsi with a subapical tooth, claws on hind tarsi without.
Claws on all tarsi without teeth.
Nervellus
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Nervellus of hind wing intercepted at or around the upper 0.25.
Nervellus of hind wing intercepted below the upper 0.25.
Hind tarsi
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Hind tarsi apically white or ivory.
Hind tarsi not white or ivory, usually reddish or dark.
Hind coxae
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Hind coxae red or orange, sometimes narrowly black or darkened at the base or apex.
Hind coxae extensively darkened or entirely black.
Hind trochanters
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Hind trochanter reddish or yellowish.
Hind trochanter black or darkened.
Hypopygium
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Upper margin of the hypopygium strongly sinuous, conspicuously widened in front of the narrow tip.
Upper margin of hypopygium weakly sinuous or almost straight.
Propodeum
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Propodeum with strong carination.
Propodeum without or with weak carination.
Malar space
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Malar space around 0.8 times the width of the base of the mandible.
Malar space not more than 2/3 the width of the base of the mandible.
Remaining taxa:
Acaenitus dubitator
Arotes albicinctus
Coleocentrus caligatus
Coleocentrus croceicornis
Coleocentrus exareolatus
Coleocentrus excitator
Coleocentrus heteropus
Coleocentrus soleatus
Mesoclistus cushmani
Mesoclistus rufipes
Phaenolobus saltans
Phaenolobus terebrator
Procinetus decimator
Discarded taxa:
Info
This key covers all known northern European species of Acaenitinae.
References
Bischoff, H. (1915). Eine neue deutsche Ichneumonide. (Hym.). Coleocentrus soldanskii. Deutsche Entomologische Zeitschrift 1915(1): 75–76.
Broad, G.R., Shaw, M.R. & Fitton, M.G. (2018). Ichneumonid wasps: (Hymenoptera: Ichneumonidae): Their classification and biology. Handbooks for the Identification of British Insects. Vol. 7, Part 12. Royal Entomological Society.
Finlands Artdatacenter (2024). Acaenitinae. LAJI.FI. Retrieved July 3, 2024.
https://laji.fi/sv/taxon/MX.308519
Johansson, N. & Wikars, L. (2024). Review of the Swedish species of Coleocentrus Gravenhorst, 1829 (Hymenoptera: Ichneumonidae: Acaenitinae) with an illustrated key to the Western Palearctic species. Entomologisk Tidskrift 145(3): 87–100.
Medvedev, G.S. (ed.) (1986). Opredelitel nasekomykh evropeiskoi chasti SSSR. T. 3. Pereponchatokrylye. Ch. 3. Akademiia Nauk SSSR Zoologicheskii Institut. Nauka, Leningrad.
SLU Artdatabanken (2024). Acaenitinae. Artfakta. Retrieved July 3, 2024.
https://artfakta.se/taxa/1000026
Varga, A. (2013). A review of the subfamily Acaenitinae Förster, 1869 (Hymenoptera, Ichneumonidae) from Ukrainian Carpathians. Biodiversity Data Journal 1: e1008.
https://doi.org/10.3897/BDJ.1.e1008
Zwakhals, C.J. (1989). [The Acaenitinae from the Netherlands and the host of Acaenitus dubitator (Hymenoptera: Ichneumonidae).] (in Dutch with English summary). Entomologische Berichten 49(2): 21–25.
