Ichneumon centrator
This record describes Ichneumon centrator (species). Recorded family: Ichneumonidae. Recorded order: Hymenoptera.
Identification and Appearance

Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hymenoptera (Ants, Bees, Wasps and Sawflies)
- Superfamily
- Ichneumonoidea
- Family
- Ichneumonidae (Ichneumonid Wasps)
- Subfamily
- Ichneumoninae
- Tribe
- Ichneumonini
- Genus
- Ichneumon
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Diet and Behavior
Diet: Only one host, Pyrrharctia isabella , has been so far recorded for this species.
Life History
Hibernates under the bark of trees during the winter.
About Flies: the wider group
Order-level background for Hymenoptera, the group containing Ichneumon centrator. Species-specific details appear above.
Group overview
Hymenoptera includes over 150,000 described species of ants, bees, wasps, and sawflies. Earth harbors approximately 20 quadrillion (20×10^15) ants, with a combined biomass of ~12 megatons of dry carbon - exceeding the combined biomass of all wild birds and mammals (PNAS, 2022).
Ecological role of the group
About 35% of the world's food crops depend on animal pollinators. The chocolate industry, valued at over $100 billion, depends on pollinating flies and midges. Ants are the dominant soil engineers in most terrestrial ecosystems, turning more soil than earthworms in many habitats.
Economic and practical significance of the group
Pollinators contribute $235-577 billion worth of annual global food production (FAO). In the U.S., bee pollination alone benefits crops valued at $18 billion annually, and honey bees are responsible for $5.4 billion in agricultural productivity. Between April 2023-2024, 55.1% of managed honey bee colonies were lost. The U.S. bee population dropped from 5 million to 2.5 million.
Recorded sources for this group: FAO, USDA, EPA, PNAS (2022), US Fish & Wildlife Service. Imported estimates may describe particular regions or reporting periods.
Photos of Ichneumon centrator (2)
Photo credits: Contributed by Bob Carlson; Additional contributions by metrioptera , PaleoJon
Frequently Asked Questions About Ichneumon centrator
How big is Ichneumon centrator?
18 mm ♀, 19-20 mm ♂
What does Ichneumon centrator eat?
The diet of the Ichneumon centrator includes Only one host, Pyrrharctia isabella , has been so far recorded for this species..
What is the life cycle of a Ichneumon centrator?
Hibernates under the bark of trees during the winter.
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