Identification file

Sitobion avenae (Fabricius, 1775)

1.3-3.3 mm

Apterous: coloration variable depending on the colonies: brown, orange, dark green to light green.
Antennae black, same length as body (1)
Legs with ends of femurs, tibias and tarsi black (2)
Cornicles straight, black and reticulated, less than 2 times longer than cauda (3)
Cauda light (4)

Alate: head and thorax brown, abdomen green to brown
Antennae black, same length as body (5)
Abdomen light-coloured with 4 marginal sclerites present (on sides), darker (6)
Legs with ends of femurs, tibias and tarsi black (7)
Cornicles straight, black and reticulated, less than 2 times longer than cauda (8)
Cauda light-coloured (9)

Species file