Tryphoninae

Classification

Phylum: Arthropoda
Subphylum: Hexapoda
Class: Insecta
Order: Hymenoptera
Superfamily: Ichneumonoidea
Family: Ichneumonidae
Subfamily: Tryphoninae

Pronunciation

How to pronounce Tryphoninae: /ˌtrɪfəˈnaɪniː/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

2021 05 14 Acrotomus succinctus1b by Slimguy. Used under a CC BY 4.0 license.

2021 05 14 Acrotomus succinctus1a by Slimguy. Used under a CC BY 4.0 license.

Hymenopteran - Algonquin Provincial Park 2019-09-24 (02) by Ryan Hodnett. Used under a CC BY-SA 4.0 license.

Hymenopteran - Algonquin Provincial Park 2019-09-24 (01) by Ryan Hodnett. Used under a CC BY-SA 4.0 license.

Idiogramma comstockii by Andrey I. Khalaim, Enrique Ruíz-Cancino. Used under a CC BY 4.0 license.

Idiogramma elbakyanae2 by Andrey I. Khalaim, Enrique Ruíz-Cancino. Used under a CC BY 4.0 license.

Summary

The Tryphoninae comprise a worldwide subfamily of the parasitic wasp family Ichneumonidae, with a significant diversity and role in ecosystem dynamics as ectoparasitoids.

Physical Characteristics

Hair-margined clypeus and the first tergite bears two longitudinal parallel ridges. Females frequently have stalked eggs projecting from their ovipositor.

Distribution

Most species are Holarctic, with 343 spp. in 30 genera found in our area, and 52 genera in 8 tribes worldwide.

Diet

Ectoparasitoids of sawflies or Lepidoptera larvae.

Life Cycle

Parasitic larvae usually complete their development in the host's cocoon. Larvae attach to host, enter final instar, build cocoon, and emerge as adults.

Reproduction

Some Tryphoninae carry their eggs on the ovipositor, attached by short stalks which they then use to attach the eggs to the cuticle of the host.

Ecosystem Role

Koinobiont ectoparasitoids of Symphyta larvae, playing a role in controlling host population.