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Subfamily Mesochorinae

Ichneumon - Mesochorus - female wasp - Mesochorus - female Hymenoptera - Ichneumonidae ? Ophion  Wasp? - female Ichneumon IMG_2919 - Mesochorus - female Unknown cocoon and Wasp - Mesochorus Mesochorus americanus? - Mesochorus - female Wasp - Mesochorus - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Parasitica" (parasitoid Apocrita))
Superfamily Ichneumonoidea (Braconid and Ichneumonid Wasps)
Family Ichneumonidae (Ichneumonid Wasps)
Subfamily Mesochorinae
Explanation of Names
Förster, 1869
Numbers
9 genera worldwide; ca. 130 spp. in 3 genera north of Mexico (incl. 105 spp. of Mesochorus)(1)(2)
800 described species wordwide(Yu et al., 2012)
Identification
Wahl (1993a) proposed the following synapomorphies for the subfamily:
glymmae long and deep, almost meeting in the middle of first tergite

male gonoforceps apically well-developed, resembling a long rod

female hypopygium large and triangular in lateral view (not projected beyond the apex of the metasoma)
ovipositor short and needle-like (1.0–2.0× as long as the length of the metasomal apex)
ovipositor sheath rigid.
Range
worldwide(1)
Print References
Araujo, R. O., Vivallo, F., & Santos, B. F. (2018). Ichneumonid wasps of the subfamily Mesochorinae: new replacement names, combinations and an updated key to the World genera (Hymenoptera: Ichneumonidae). Zootaxa, 4521(1), 052-060.