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Adelognathus
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Key to northern European
Adelognathus
Hymenoptera
Ichneumonidae
Adelognathinae
Adelognathus
How to use
Terminology
Steps
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Flagellum
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Flagellum with 13 segments.
Flagellum with 12 segments.
1st tergite
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1st tergite slender, more than 2.3 times as long as broad. 1st sternite 0.4-0.65 as long as 1st tergite.
1st tergite not as slender, less than 2.1 times as long as broad. 1st sternite less than 0.5 times as long as 1st tergite.
Epicnemial carina
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1. Both ventral and pleural part of the epicnemial carina present, though sometimes reduced.
2. Ventral part of epicnemial carina absent, pleural part at least partially present.
3. Pleural part of epicenmial carina absent, ventral part at least partically present.
4. Epicnemial carina absent.
Face
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1. Face black.
2. Face black and yellow.
3. Face yellow.
Clypeus
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1. Clypeus black.
2. Clypeus yellow and black or partially redish.
3. Clypeus yellow.
Frontal orbits
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Frontal orbits with yellow spots or areas.
Frontal orbits black.
Genae
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Genae black.
Genae yellow.
Scape/pedicel
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Scape and pedicel black.
Scape and pedicel at least in part yellow or redish.
Claws
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Claws strongly curved with a large subapical tooth.
Claws less strongly curved and with or without a smaller subapical tooth.
Areolet
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Areolet closed, though 3rs-m might be indistinct and/or unpigmented.
Areolet open, 3rs-m absent.
2nd tarsal segment
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2nd segment of hind tarsus 1.6-1.9 times as long as 5th segment (areolet open, propodeum smooth without apical area, pterostigma usually dark).
2nd segment of hind tarsus usually shorter, if not then otherwise different.
2nd tergite
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2nd tergite entierly granular, mate.
2nd tergite smooth, not granular.
Malar space
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Malar furrow present, though often fine.
Malar space without furrow (at most with a densely granulated line).
1st tarsal segment
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1st segment of hind tarsus short, at most 1.5 times as long as 5th.
1st segment of hind tarsus longer, about 3 times as long as 5th.
Mesoscutum
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1. Mesoscutum almost without pubescence.
2. Mesoscutum with lateral non pubecent areas.
3. Mesocutum more or less evenly pubecent.
Flagellum length
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1. Flagellum as long as hindwing or longer
.
2. Flagellum 0.7-0.9 times as long as hindwing.
3. Flagellum 0.7 times as long as hindwing or less.
Mesoscutum microsculpture
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Mesoscutum granular, mate.
Mesoscutum smooth, polished.
4th flagellar segment
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times as long as wide
1st flagellar segments
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The total length of the 1st and 2nd segment of the flagellum does not exceed the diameter of the eye.
The total length of the 1st and 2nd segment of the flagellum greater than the diameter of the eye.
Abd
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ignore!
Likely taxa
Adelognathus acantholydae
Adelognathus brevicornis
Adelognathus brevis
Adelognathus britannicus
Adelognathus chrysopygus
Adelognathus ctenonyx
Adelognathus cubiceps
Adelognathus difformis
Adelognathus dorsalis
Adelognathus facialis
Adelognathus frigidus
Adelognathus laevicollis
Adelognathus longithorax
Adelognathus marginellus
Adelognathus nigriceps
Adelognathus nigrifrons
Adelognathus obscurus
Adelognathus pallipes
Adelognathus pilosus
Adelognathus pumilio
Adelognathus puncticollis
Adelognathus punctulatus
Adelognathus pusillus
Adelognathus rufithorax
Adelognathus stelfoxi
Adelognathus tenthredinarum
Adelognathus tetratinctorius
Adelognathus thomsoni
Info
This key covers almost all
Adelognathus
species that are known to occur in northern Europe (except
A. aciculatus
) as of 2024. It is almost entirely based on Kasparyan’s dichotomous key due to the low amount of available literature. There are therefore large holes in the data which have been filled in with all available options for a given step. Results should ideally be double-checked with the source material or an expert.
Males are excluded because many species are known only from females. Refer to Kasparyan (1990) for a partial key to males.
Missing species
Adelognathus aciculatus
References
Finlands Artdatacenter (2024). LAJI.FI: Adelognathinae.
https://laji.fi/sv/taxon/MX.309116
[2024-07-11]
Kasparyan D. R. (1990). Fauna of USSR, Insecta Hymenoptera, Ichneumonidae Subfamily Tryphoninae: Tribe Exenterini, Subfamily Adelognathinae.
Nauka Leningrad, 3
(2), 11–136.
Riedel, M. & Magnusson, P. (2017). The genus Adelognathus HOLMGREN (Hymenoptera, Ichneumonidae: Adelognathinae) in Sweden - Second contribution to the Swedish Malaise trap project.
Entomofauna, 38
(25), 513–528.
SLU Artdatabanken (2024). Artfakta: Adelognathinae.
https://artfakta.se/taxa/1000034
[2024-07-11]
.
