# Pitted Mason Wasp

*Euodynerus foraminatus*

These wasps are 'mass-provisioners,' meaning the mother caches all the food her larva will ever need in a single mud-sealed chamber before the egg even hatches.

- **Taxonomy:** Animalia › Arthropoda › Insecta › Hymenoptera › Vespidae › Euodynerus
- **IUCN Red List status:** Least Concern
- **Population trend:** stable
- **Biome:** forest
- **Habitat:** Forest edges, meadows, and suburban gardens containing pithy-stemmed plants or dead wood.
- **Diet:** Adults feed on floral nectar; larvae are carnivorous, consuming paralyzed caterpillars provided by the mother.
- **Range:** North America, Southern Canada, Mexico
- **Size:** 10-15 mm
- **Lifespan:** 1 year (predominantly spent as larvae/pupae); adults live 4-8 weeks.
- **Active:** diurnal
- **Threats:** Broad-spectrum insecticide use and the removal of dead wood or hollow-stemmed plants used for nesting.
- **Safe to approach?:** This species is non-aggressive and harmless to humans unless physically handled or crushed. They are solitary and do not defend a hive. If stung, the sensation is similar to a mild bee sting; wash the site with soap and water and monitor for rare allergic reactions.

## About

Euodynerus foraminatus is a species of potter or mason wasp in the family Vespidae.

## Sources

- Plate: https://gaia-dex.com/species/2aebe87f-525c-4b76-8e37-5eee11d83df1
- iNaturalist: https://www.inaturalist.org/taxa/203486
- Wikipedia: https://en.wikipedia.org/wiki/Euodynerus foraminatus
- Conservation status: IUCN Red List category, as recorded by Gaia-Dex
- Photo: https://inaturalist-open-data.s3.amazonaws.com/photos/2813507/medium.jpg (Bill Keim, CC-BY, via iNaturalist)

Habitat, diet, size and similar notes are AI-written summaries; check them against the linked sources before relying on them.