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Key to genera of Afrotropical Banchinae

(Life: Kingdom: Metazoa (animals); Phylum: Arthropoda; Class: Hexapoda; Order: Hymenoptera;  Superfamily: Ichneumonoidea; Family: Ichneumonidae; Subfamily: Banchinae)

ClassificationIdentification keys


1. Tergites 24 with a median pair of (usually) deep oblique grooves that converge anteriorly and diverge posteriorly (A); Cu1 longer than cu-a, such that Cu2 arises below middle of these combined veins (nervellus of Townes) (B) 2

 

- Tergites 24 without a median pair of oblique grooves (a); Cu1 often longer than cu-a, but may be shorter (b) ...4

 


1. Occipital carina strongly curved before junction with hypostomal carina (A); areolet open, i.e. vein 3rs-m absent (B) ...Apophua

 

- Occipital carina without a strong curve before junction with hypostomal carina (a); areolet closed (b)...3

 


3. Malar space 0.5 to 0.8 as long as basal width of mandible (A); epomia long and strong (B) ...Glyptopimpla

 

- Malar space 1.4 to 2.5 as long as basal width of mandible (a); epomia usually absent or indistinct, only represented as a short wrinkle (b) ...Sjostedtiella

 


4. Hind wing with Cu1 longer than cu-a such that Cu2 arises below the middle of these combined veins (nervellus of Townes), rarely Cu2 is absent (A); fore wing with 3rs-m sometimes lacking, shape of areolet when closed various (A); mesopleuron usually wider than high (B) ...5

 

- Hind wing with Cu1 shorter than cu-a such that Cu2 arises above the middle of these combined veins (nervellus of Townes) (a); fore wing with 3rs-m always present, areolet rhomboidal (a); mesopleuron usually higher than wide (b) ...11

 


5. Occipital carina joining hypostomal carina at base of mandible (A); epomia usually present (B); propodeal spiracle elliptic (C) ...Syzeuctus

 

- Occipital carina joining hypostomal carina distant from base of mandible (a); epomia usually absent (b); propodeal spiracle circular to elongate (c) ...6

 


6. Tergite 1 with anterior half slender (A); glymma absent (B); and its spiracle at or behind
3 middle (A, B); propodeum lacking carinae (C); propodeal spiracle elongate (C) ...Atropha

 

- Tergite 1 with anterior half stout to moderately slender (a); glymma present (a); with spiracle in front of middle (a, b); propodeum usually with either an apical transverse carina or pleural carina, or both (c); propodeal spiracle usually circular to elongate (c) ...7

 


7. Apex of submetapleural lobe tooth-like (A); tarsal claws simple with a single basal tooth above (B); areolet open (C); occipital carina broadly interrupted above ....Tossinola

 

- Apex of submetapleural lobe rounded (a); tarsal claws simple or pectinate (b); areolet open or closed (c); occipital carina complete ....8

 


8. Apical 0.30.4 of flagellum tapered to a slender apex (A); ovipositor sheath 0.61.2 as long as hind tibia (B) ...9

 

- Flagellum not tapered at the apex (a); ovipositor sheath usually more than 1.4 as long as hind tibia (b) ...10

 


9. First tergite usually evenly and rather strongly narrowed anteriorly (A); areolet always truncate-shaped (B); ovipositor 0.6 as long as hind tibia (C) ...Cryptopimpla

  First tergite stout, only moderately narrowed anteriorly (a); areolet always open (b); ovipositor 0.81.2 as long as hind tibia (c) ....Spilopimpla


10. First tergite nearly always with longitudinal striae (A); areolet open (B) ...Himertosoma

First tergite rarely covered with longitudinal striae (a); areolet closed or sometimes lacking (b) ...Lissonota


11. Occipital carina joining hypostomal carina above base of mandible (A); ovipositor sheath short to long (0.141.8), as long as hind tibia (B); mandibular teeth usually subequal in length (C); apical clypeal margin normal (C) ...Exetastes

 


Occipital carina joining hypostomal carina at base of mandible (a); ovipositor sheath always short, 0.1 to 0.2 as long as hind tibia (b); lower tooth of mandible always longer than upper tooth (c); clypeus apically invaginated (c) ...Tetractenion

 


Reference

Reynolds Berry T, van Noort S. 2020. Revision of the endemic Afrotropical genus Tetractenion (Hymenoptera, Ichneumonidae) with an identification key to genera of Banchinae for the region. ZooKeys 1007: 49-84. https://doi.org/10.3897/zookeys.1007.55543

Credits

Photographs by Terry Reynolds Berry (Iziko Museums of South Africa).


Web author Simon van Noort (Iziko South African Museum)

 

Citation: van Noort, S. 2023. WaspWeb: Hymenoptera of the Afrotropical region. URL: www.waspweb.org (accessed on <day/month/year>).

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