honeydew gall wasp

Disholcaspis eldoradensis

Member of oak gall wasps (tribe Cynipini)
gall wasps (family Cynipidae)
gall wasps and allies (superfamily Cynipoidea)
wasps
insects (class Insecta)
hexapods (subphylum Hexapoda)
arthropods (phylum Arthropoda)
animals (kingdom Animalia)
oak galls
galls

Caution: There may be other wild species of this genus not yet included in this guide.

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• smooth sides
• sits on a narrow peg-like base
• cap is flat or barely curved and pitted
• forms on branches of white oaks (section Quercus)
• produces honeydew, which may attract ants

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Chris’s observations: none

Taxon info: iNaturalist – BugGuide – Gallformers

Bay Area species: iNaturalist