M. coryli

Myzocallis coryli (Goeze, 1778)

Hazel aphid

Myzocallis coryli : larves
Myzocallis coryli : adulte ailé
Myzocallis coryli : dégât sur noisetier

Morphological characters

1.3-2.0 mm.
Aphid yellowish to whitish, all parthenogenetic adults alate.
Larva and nymph: antennae short, ringed at articulations, abdomen covered with numerous hairs, cornicles short and light-colored, cauda knobbed.
Alate: antennae same length as body, cornicles short and light-colored, cauda knobbed, presence of a small black spot on basal part of pterostigma.

See identification file

Life cycles

Monoecious holocyclic

Host plants

Corylus avellana

Particular characteristics

Myzocallis coryli colonizes undersides of hazel leaves. The sexual forms appear in autumn.

In this folder

Modification date: 22 May 2024 | Publication date: 22 March 2017 | By: Evelyne Turpeau, Maurice Hullé, Bernard Chaubet