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Key to northern European Dusona
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Hymenoptera
Ichneumonidae
Campopleginae
Dusona
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Descriptors
Remaining taxa
Epipleural fold
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The third epipleurite separated from the tergite by a crease or fold at least anteriorly
the third epipleurite not separated from the tergite
The third epipleurite separated from the tergite by a crease or fold at least anteriorly
The third epipleurite not separated from the tergite
Areolet
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Areolet closed
Areolet open
Areolet closed
Areolet open
Abdomen coloration
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1. Abdomen black basally and apically, red or yellow centrally (at least 4th tergite partially red or yellow)
2. All tergites black dorsally, red or yellow on the sides of at least some tergites
3. Abdomen black basally, the rest red or yellow (some black spots might occur)
4. Abdomen black (hind tibia almost white centrally)
5. Abdomen with tergite 2 and 3 partially red or yellow
Abdomen tone
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Ligher areas of abdomen red or orange
Ligher areas of abdomen yellowish orange or yellow
Hind tibia coloration
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1. Hind tibia dark basally and apically, brighter centrally
2. Hind tibia entierly yellow or red
3. Hind tibia yellow or red with dark tip
4. Hind tibia yellow or red with dark base
5. Hind tibia entierly black or dark brown
Hind femur coloration
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1. Hind femur black
2. Hind femur black with orange or red tip
3. Hind tibia black with red areas or red with black areas
4. Hind femur mainly orange or red
Second tergite coloration
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Second tergite with black area reaching the posterior corner at least centrally
Second tergite with black area not reaching the posterior corner
Maxillary palp coloration
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Maxillary palps at least partially yellow or light brown
Maxillary palps dark brown or black
Mandible coloration
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Mandibles at least partially yellow, brown or red
Mandibles black
Number of flagellomeres
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flagellomeres
Mesopleuron sculpture
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Mesopleurum with distinct punctures centrally and ventrally, sometimes wrinkled
Mesopleurum without distinct punctures, sometimes rugose punctate and/or with wrinkles
Mesopleuron texture
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Texture beneath sculpture and punctuation smooth
Texture beneath sculpture and punctuation coriaceous
Genal carina
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Junction of the genal and the hypostomal carina distinctly raised forming a lopsided triangular pyramid
Junction of the genal and the hypostomal carina not raised and forming a lopsided triangular pyramid
Propodeum carination
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Propodeum with longitudinal carinae complete
Propodeum with longitudinal carinae incomplete or obliterated
Propodeum transverse striae
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Propodeum with some transverse striae, sometimes interspersed with distinct irregular wrinkles
Propodeum without transverse striae, usually irregularly wrinkled
Antennal carina
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1. Antennal carina narrow and low (1a). Sometimes widened to a low crescent-shaped plate dorsally (1b)
2. Antennal carina widened dorsally and sligtly raised into a inconspicuous nose-like projection
3. Antennal carina slightly dorsally, this extension covered by transverse striate
4. Antennal carina widened dorsally into a large nose-like projection with transverse striae
5. Antennal carina raised and strongly bent upwards to form a ear-like, crescent-shaped plate
Pleural epicnemial carina
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The pleural part of the epicnemial carina presant at least partially
The pleural part of the epicnemial carina replaced by short wrinkles for its entire length or completely absent
Ventral epicnemial carina
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The ventral part of the epicnemial carina low or indistinctly raised
The ventral part of the epicnemial carina distinctly raised
Speculum texture
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Speculum more or less smooth, usually shining
Speculum coriaceous or granulate strigose, often more dull
Area in front of speculum
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Area in front of speculum finely striate or wrinkled centrally
Area in front of speculum granulate strigose or coriaceous centrally
Glymma
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Glymma present, but sometimes small
Glymma absent, but first tergite often with a shallow lateral area
Area in front of glymma
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Area in front of glymma/lateral area smooth
Area in front of glymma/lateral area with longitudal wrinkles
Pronotum flange
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Hind corner of pronotum produced to a flange, which projects about as far as the tegula. Small species
Hind corner with no such structure
Nervellus
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Nervellus intercepted or bent distinctly below the middle, sometimes completely straight
Nervellus intercepted or bent around the middle
Ovipositor
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Ovipostior very stout, the upper valve at least 2 times as high as the lower valve basally
Ovipostior normal
Temple constriction
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1. Temples behind eyes strongly constricted, tangential lines of eyes and temples intersect on the mesoscutum
2. Temples behind eyes moderately constricted, tangential lines of eyes and temples intersect on the scutellum
3. Temples behind eyes slightly constricted, tangential lines of eyes and temples intersect on the propodeum
4. Temples behind eyes weakly constricted, tangential lines of eyes and temples intersect on the abdomen
Genal index
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Malar space index
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mm
Epipleural index
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Frons
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Frons with a strong medinan longitudinal keel which is raised medially
Frons without without or with a rather weak median longitudinal keel
Frons with a strong medinan longitudinal keel which is raised medially
Frons without without or with a rather weak median longitudinal keel
Clypeus
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Clypeus densely rugose-punctate ventrally as well as dorsally, only a narrow ventral band punctate
Clypeus with well separated punctures on its ventral 0.4-0.7
Clypeus densely rugose-punctate ventrally as well as dorsally, only a narrow ventral band punctate
Clypeus with well separated punctures on its ventral 0.4-0.7
D.angustifrons-D.dubitor
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D.rugifer-D.stragifex
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6Areolet
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3Ocellar index
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39angustifrons
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312nd tergit index
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29Tibia ring
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23Thyridal index
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19Spur Index
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20Propodeum depression
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Size
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Ovipositor index
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Black lateral stripe
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12Pleural junction
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Remaining taxa
Dusona admontina
Dusona aemula
Dusona alpigena
Dusona alpina
Dusona alticola
Dusona anceps
Dusona angustata
Dusona angustifrons
Dusona annexa
Dusona aurita
Dusona aversa
Dusona baueri
Dusona bellipes
Dusona bicoloripes
Dusona blanda
Dusona bucculenta
Dusona calceata
Dusona carinifrons
Dusona carpathica
Dusona castanipes
Dusona circumcinctus
Dusona circumspectans
Dusona confusa
Dusona cultrator
Dusona dubitor
Dusona erythrogaster
Dusona falcator
Dusona flagellator
Dusona genalis
Dusona habermehli
Dusona holmgrenii
Dusona humilis
Dusona inermis
Dusona infesta
Dusona insignita
Dusona juvenilis
Dusona leptogaster
Dusona libertatis
Dusona limnobia
Dusona luteipes
Dusona mactator
Dusona mercator
Dusona minor
Dusona montana
Dusona myrtilla
Dusona nidulator
Dusona notabilis
Dusona obliterata
Dusona opaca
Dusona perditor
Dusona petiolator
Dusona pineticola
Dusona polita
Dusona prominula
Dusona pugillator
Dusona pulchripes
Dusona recta
Dusona rubidatae
Dusona rugifer
Dusona sobolicida
Dusona spinipes
Dusona stenogaster
Dusona stragifex
Dusona stygia
Dusona subimpressa
Dusona tenuis
Dusona terebrator
Dusona thomsoni
Dusona vidua
Dusona vigilator
Dusona xenocampta
Charops cantator
References
Hinz. R.; Horstmann, K. (2004). Revision of the western Palearctic species of Dusona Cameron (Hymenoptera, Ichneumonidae, Campopleginae). SPIXIANA. Suppl. 29, 1-183
Horstmann, K. (2009). Revision of the western Palearctic species of Dusona Cameron (Insecta, Hymenoptera, Ichneumonidae, Campopleginae). SPIXIANA. 32 (1), 45-110
Meier, Noah I.; Urfer, Karin; Haraldseide, Håkon; Vårdal, Hege; Klopfstein, Seraina (2022).
Open access in a taxonomic sense: a morphological and molecular guide to Western Palaearctic Dusona (Hymenoptera, Ichneumonidae)
. Journal of Hymenoptera Research. 91, 83-183
SLU Artdatabanken (2024). Artfakta: Ichneumonidae.
https://artfakta.se/taxa/2001162
[2024-04-23]
Finlands Artdatacenter (2024). LAJI.FI: Ichneumonidae.
https://laji.fi/sv/taxon/MX.289207
[2024-04-23]
