potato gall midge

Rabdophaga salicisbatatus

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 branches of willows (genus Salix)
• not necessarily at the end of a twig
• reddish or greenish, bloated and lumpy

---

Chris’s observations: 3 (none are research grade)

Locations:

• Murray Ranch SP: 2
• Coyote Hills RP

Months:

• Jul.: 1
• Aug.: 2

For more details, use advanced search.

---

Taxon info: iNaturalist – Gallformers

Bay Area species: iNaturalist