Thecabius affinis

Thecabius affinis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hemiptera
Suborder: Sternorrhyncha
Family: Aphididae
Genus: Thecabius
Species:
T. affinis
Binomial name
Thecabius affinis
Kaltenbach, 1843

Thecabius affinis, commonly known as the buttercup-poplar gall aphid, is a gall-making aphid in the genus Thecabius found in the United States and Europe.[1][2]

Host plants

This species creates galls on buttercups and poplar trees across its range.[1][3]

Description

The aphid is fuzzy and white colored in pre adults, and adults are generically bluish. The main destinguisher for this aphid is the host plant. This is the only aphid of this species' appearance that uses the bottom of buttercups (in North America) and poplar species, where they congregate.[1][3]

Pest

This species causes major leaf damage to poplar trees across its range, especially in the United Kingdom and surrounding countries.[4]

References

  1. ^ a b c "Thecabius affinis (Poplar-buttercup gall aphid): identification, images, ecology, control". Influential Points. Retrieved 17 December 2025.
  2. ^ "Thecabius affinis". Gallformers. Retrieved 17 December 2025.
  3. ^ a b "Poplar-buttercup gall aphid". NatureSpot. Retrieved 17 December 2025.
  4. ^ "Thecabius affinis". Forestpests.eu. Retrieved 17 December 2025.