Gryon
This record describes Gryon (genus). Recorded family: Scelionidae. Recorded order: Hymenoptera.
Identification and Appearance
| Feature | Description |
|---|---|
| Additional details | Gryon is a large, cosmopolitan genus typically 0.5-2.5 -mm in length with a compact, often flattened or stout body shape. Mostly dark brown to solid black with a heavily textured, highly sculptured exoskeleton. |
| Legs | Legs and antennal bases often range from pale yellow to reddish-brown. Wide head relative to the body with large compound eyes. |
| Antennae | Antennae are characteristically elbowed (geniculate), females possess a prominent distal club, while male antennae are thread-like (filiform). Reduced forewing venation typical of scelionids, with short marginal and stigmal veins. Some species or sexes may be brachypterous (short-winged) or apterous. Unless identified by a recognised expert, a photo is required and the specimen should be examined with a microscope. In the comments box, state the key or ID method used and describe the size and identifying characters. Idiobiont egg parasitoids primarily of Hemiptera. Mineo, G., & Caleca, V. (1984) World revision of four small groups of Gryon Haliday: the artum, the austrafricanum, the hospes, and the misellum (Hym., Proctotrupoidea, Scelionidae). Phytophaga 2, 41-56. No additional images available for this species. |
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hymenoptera (Ants, Bees, Wasps and Sawflies)
- Superfamily
- Platygastroidea
- Family
- Scelionidae
- Subfamily
- Scelioninae
- Genus
- Gryon
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Diet and Behavior
Life History
Idiobiont egg parasitoids primarily of Hemiptera.
Additional species information
Recorded status
Unknown.
About Flies: the wider group
Order-level background for Hymenoptera, the group containing Gryon. 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.
