Round Bullet Gall Wasp
Disholcaspis quercusglobulus
This record describes Disholcaspis quercusglobulus (species). Recorded family: Cynipidae. Recorded order: Hymenoptera.
Identification and Appearance
Forms round, detachable twig galls, 8-15 mm in diameter, singly or in small clusters, on white oak ( Quercus alba ).
Wikipedia reference for Disholcaspis quercusglobulus: http://en.wikipedia.org/wiki/Disholcaspis_quercusglobulus.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Hymenoptera (Ants, Bees, Wasps and Sawflies)
- Superfamily
- Cynipoidea
- Family
- Cynipidae (Gall Wasps)
- Tribe
- Cynipini
- Genus
- Disholcaspis
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Diet and Behavior
Life History
Galls in Ohio have been observed to contain pupae in late September; adults emerged from galls in Ohio and Toronto in mid- to late October. The adults in Toronto immediately oviposited in white oak twigs. The spring gall resulting from this oviposition is not known.
Additional species information
Species notes from the sources
Etymology: Author: Fitch, 1859
About Flies: the wider group
Order-level background for Hymenoptera, the group containing Disholcaspis quercusglobulus. 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.