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Genus Therion

Ichneumon - Therion - female Thread-waisted Wasp - Sphecidae? - Therion ID for Wasp? - Therion - female Therion morio - female Ichneumon wasp - Therion ichneumonid 3 - Therion - female Mating Wasps - Therion ANOMALONINAE - Therion? - Therion
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 Anomaloninae
Tribe Gravenhorstiini
Genus Therion
Explanation of Names
Therion Curtis 1829-30
11 spp. in our area(1)
"Therion is distinctive because of its apically truncate clypeus without a pointed projection or tooth;

small acute tooth on lower front margin of pronotum;
postpectal carina interrupted in front of each mid coxa;

postnervulus vein joining the discocubital cell nearits midlength;

and because of its modified male hind tarsi which have a weak median longitudinal carina ventrally on segments 2-4." -Charles C. Porter 1999

Key to North Eastern USA species in Dreisbach 1947
New World & Eurasia(2)
Print References
Dreisbach, R. R. (1947). A New Species of the Genus Therion (Hymenoptera, Ichneumonidæ) with a Key to the Species of the Northeastern States. Journal of the New York Entomological Society, 55(3), 201-203.

Porter, C. C. (1999). First notice of Therion from South America with description of two new species from Argentina and Bolivia (Hymenoptera: Ichneumonidae). Insecta Mundi, 13(1-2), 85-91.