Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Subfamily Ichneumoninae

clear-patch-winged wasp - Saranaca elegans - female small wasp - male Ichneumon - Phaeogenes - male Ichneumon - Vulgichneumon brevicinctor - male hymenoptera - female Ichneumon Wasp - Trogus pennator wasp Ichneumon
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon ("Parasitica" (parasitic Apocrita))
Superfamily Ichneumonoidea (Braconids and Ichneumons)
Family Ichneumonidae (Ichneumon Wasps)
Subfamily Ichneumoninae
Synonyms and other taxonomic changes
Heresiarchini, Ichneumonini, Protichneumonini
Numbers
Second largest ichneumonid subfamily, with ~700 spp. in 90 genera of 8 tribes in our area and ~400 genera in 16 tribes worldwide(1)(2)
Identification
Colorful appearance, dorsoventrally depressed abdomen (flattened from top to bottom, wider than high), long propodeum, pentagonal areolet (small cell in the centre of the fore wing; second submarginal cell), and large size. Truncate clypeus exposing the labium. The sexes are quite different in most species.
Key to tribes in(3)
OVERVIEW
       





       
       






       
       
       


Range
worldwide(1)
Food
Adults feed on honey dew of aphids and on certain plant foliage.
Life Cycle
All individuals of this subfamily are internal parasites of the order Lepidoptera. Although females lay one egg into either larvae or pupae, the offspring always emerge from the pupa. Ichneumoninae are endoparasitic idiobionts. An idiobiont has a wide range of hosts and it eats, kills, or paralyzes the host immediately after oviposition therefore resulting in no continuation of development. An endoparasite feeds internally on its host whereas an ectoparasite feeds externally. Female Ichneumoninae look for hosts on the ground and have short ovipositors, possibly as a result of their host usually being a naked larvae. Typically, adult females hibernate and search for hosts in the spring.(4)
Remarks
Adults dislike intense heat and sunlight and not usually found during the middle of the day.

The missing tribe(1)(2): Ischnojoppini (Ethiopian, Oriental + New World; 3 genera, 1 represented in our area by 2 spp.)