spiny leaf gall wasp

Diplolepis polita

Member of rose gall wasps (subfamily Diplolepidinae)
rose galls
gall wasps and allies (superfamily Cynipoidea)
wasps
insects (class Insecta)
hexapods (subphylum Hexapoda)
arthropods (phylum Arthropoda)
animals (kingdom Animalia)
galls

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

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• forms on the upper leaf surfaces of california wild rose (Rosa californica)

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Chris’s observations: 8 (all are research grade)

Locations:

• Castle Rock SP
• Edgewood Park & Natural Preserve
• Hidden Villa, Los Altos Hills
• Nisene Marks SP
• Pescadero Creek CP
• Santa Teresa CP
• Stevens Creek CP
• Wunderlich CP

Months:

• Apr.: 2
• May: 3
• Jun.: 1
• Jul.: 2

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Taxon info: iNaturalist – BugGuide – Gallformers

Bay Area species: iNaturalist