Ich
Acaenitinae
BugWeb
Home
Keys
Guides
Diptera
Hymenoptera
About
Contact
BugWeb
something whent wrong :(
Key to northern European Acaenitinae
Hymenoptera
Ichneumonidae
Acaenitinae
How to use
Terminology
Steps
chevron_right
Abdomen
chevron_right
1. Abdomen black.
2. Abdomen with at least one tergite predominantly red.
3. Abdomen black with a white apical stripe on the first and second tergites.
Ovipositor
chevron_right
1. Ovipositor longer than or equal to abdomen.
2. Ovipositor shorter than abdomen.
Areolet
chevron_right
1. Areolet closed.
2. Areolet open distally.
3. Areolet open proximally.
Clypeus
chevron_right
ignore!
Notauli
chevron_right
Notauli present.
Notauli absent or very weak.
Claws
chevron_right
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
chevron_right
Nervellus of hind wing intercepted below the upper 0.25. relatively small species.
Nervellus of hind wing intercepted at or around the upper 0.25. Large and slender species.
Propodeum
chevron_right
Propodeum with strong carination.
Propodeum without or with weak carination.
Malar space
chevron_right
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.
Antennae
chevron_right
Antennae yellowish, often with the base black.
Antennae blackish or brown.
Hind trochanters
chevron_right
Hind trochanter redish or yellowish.
Hind trochanter black or darkened.
Hind tarsi
chevron_right
1. Hind tarsi apically white or ivory.
2. Hind tarsi redish.
3. Hind tarsi apically darkened, redish basally.
4. Hind tarsi dark.
Hind coxae
chevron_right
1. Hind coxae red.
2. Hind coxae red with base black or darkened.
3. Hind coxae black.
Likely taxa
Acaenitus dubitator
Arotes albicinctus
Coleocentrus caligatus
Coleocentrus croceicornis
Coleocentrus exareolatus
Coleocentrus excitator
Coleocentrus heteropus
Coleocentrus soldanskii
Coleocentrus soleatus
Mesoclistus cushmani
Mesoclistus rufipes
Phaenolobus saltans
Phaenolobus terebrator
Procinetus decimator
Info
This key covers all known northern European species of Acaenitinae, several of which are either very rare or possibly extinct. A possible issue is the reliance on coloration, as northern specimens tend to be somewhat different compared to their continental counterparts in this aspect. Contact me if you find any errors or points of confusion.
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). LAJI.FI: Acaenitinae.
https://laji.fi/sv/taxon/MX.308519
[2024-07-03]
SLU Artdatabanken (2024). Artfakta: Acaenitinae.
https://artfakta.se/taxa/1000026
[2024-07-03]
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).
Entomologische berichten 49
(2), 21–25.
