Disholcaspis quercusvirens
(Ashmead, 1881)
Disholcaspis quercusvirens is a cynipid that induces galls on live oak trees (Quercus virginiana). The exhibits an with distinct sexual and phases. It is one of numerous oak-associated gall wasps in North America, with its and management studied in the context of ornamental and native live oak systems.

Pronunciation
How to pronounce Disholcaspis quercusvirens: //daɪˌsɒlˈkæspɪs ˌkwɜːrkəsˈvaɪrɛnz//
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Identification
Galls produced by this occur on live oak trees; specific gall distinguishing it from such as D. quercusmamma (oak rough bulletgall ) and D. quercusglobulus (round bullet ) would require direct examination of voucher specimens or galls. The species epithet 'quercusvirens' references its association with evergreen ('virens') oaks.
Images
Habitat
Associated with live oak trees (Quercus virginiana) in landscapes and natural settings where this occurs.
Distribution
North America; specific range details not extractable from available sources.
Host Associations
- Quercus virginiana - gall inductionlive oak
Life Cycle
with both sexual and ; the sexual generation has been described in scientific literature. emerge from galls to reproduce and initiate the next generation.
Behavior
Induces gall formation on oak trees through chemical secretions, likely involving enlarged venom glands as has been documented in and other cynipid .
Ecological Role
Gall-former that creates protected structures on oaks; galls may serve as microhabitats for and .
Human Relevance
Subject to management studies on live oak trees, indicating potential relevance in urban forestry or ornamental horticulture contexts.
Similar Taxa
- Disholcaspis quercusmammaAlso produces bullet-like galls on oaks; distinguished by preferences and gall details
- Disholcaspis quercusglobulusRound bullet on chinquapin oak; differs in association and gall shape
Sources and further reading
- BugGuide
- iNaturalist taxon
- NCBI Taxonomy
- Gall-Inducing Wasps Have Enlarged Venom Glands, Study Finds
- Coccinelidae | Beetles In The Bush
- The Insects Behind the Weird Growths on Plants
- Bug Eric: Wasp Wednesday: Gall Wasps
- Life Cycle ofDisholcaspis quercusvirens(Hymenoptera: Cynipidae) with a Description of the Sexual Generation
- Life History, Natural Enemies, and Management of <I>Disholcaspis quercusvirens</I> (Hymenoptera: Cynipidae) on Live Oak Trees