Sumac Gall Aphid vs Scotch Argus

Side-by-side species comparison

Attribute Sumac Gall Aphid Scotch Argus
Scientific Name Melaphis rhois Erebia aethiops
Order Hemiptera Lepidoptera
Family Pemphigidae Nymphalidae
Size 1-3 mm 40-48 mm wingspan
Habitat Woodlands Woodlands
Diet Gall Makers Omnivores
Regions Eastern North America Europe, temperate Asia
Conservation Not Evaluated Least Concern

Sumac Gall Aphid

A gall-forming aphid that produces large hollow galls on sumac trees in which colonies live and reproduce. Soldier nymphs defend the gall from invaders using their thickened front legs.

💡

Did You Know?

Their soldier caste is composed of sterile first-instar nymphs that sacrifice their development to protect the colony.

Scotch Argus

A dark brown butterfly with russet-orange bands containing eyespots, found in northern grasslands and light woodland. It flies in a bouncing manner close to the ground.

💡

Did You Know?

In Britain, it is confined to Scotland and a single colony in the Lake District surviving since the last ice age.