willow beaked-gall midge

Rabdophaga rigidae

Member of willow gall midges (genus Rabdophaga)
gall midges (subfamily Cecidomyiinae)
nematoceran flies (suborder Nematocera)
flies (order Diptera)
insects (class Insecta)
hexapods (subphylum Hexapoda)
willow galls
arthropods (phylum Arthropoda)
animals (kingdom Animalia)
galls

---

• forms within the tips of branches of willows (genus Salix)
• at the end of a twig or at the base of a terminal leaf cluster
• reddish or greenish, bloated and lumpy

---

Chris’s observations: 1 (none are research grade)

Locations:

• Sweeney Ridge National Recreation Area

Months:

• Apr.: 1

For more details, use advanced search.

---

Taxon info: iNaturalist – BugGuide – Gallformers

Bay Area species: iNaturalist