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

Very little information about this species is available to us at present, but, based on images available, the main characteristics of the species seem to be a black abdomen and paler legs. The status and distribution in Britain are not known due to the species being under recorded. No additional images available for this species.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hymenoptera (Ants, Bees, Wasps and Sawflies)
- Superfamily
- Ichneumonoidea
- Family
- Ichneumonidae (Ichneumonid Wasps)
- Subfamily
- Pimplinae
- Tribe
- Ephialtini
- Genus
- Tromatobia
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
To follow
Seasonal Activity
To follow
Diet and Behavior
Life History
The larvae feed on spider egg sacks.
Additional species information
Recorded status
The status and distribution in Britain are not known due to the species being under recorded.
About Flies: the wider group
Order-level background for Hymenoptera, the group containing Tromatobia ovivora. 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 Tromatobia ovivora (3)
Frequently Asked Questions About Tromatobia ovivora
What is Tromatobia ovivora?
Tromatobia ovivora is a species in the family Ichneumonidae, within the order Hymenoptera.
Where is Tromatobia ovivora found?
Habitat: To follow
When is Tromatobia ovivora active?
Tromatobia ovivora: seasonal activity - To follow.
What is the life cycle of a Tromatobia ovivora?
The larvae feed on spider egg sacks.
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