L. roboris

Lachnus roboris (Linnaeus, 1758)

Variegated oak aphid

Lachnus roboris : adulte aptère
Lachnus roboris : adulte ailé
Lachnus roboris : éclosion
Lachnus roboris : colonie

Morphological characters

3.4-5.1 mm.
Apterous: pear shaped, dark brown to bronze, glossy, with cornicles reduced to a dark raised pore, cauda short
Alate: dark brown, wings small in relation to body and pigmented with broad spots, antennae short with processus terminalis very short, cornicles and cauda short as in apterous.

See identification file

Life cycles

Monoecious holocyclic.

Oviparous females appear in autumn. Males are alate. After mating, eggs laid in a dense bunch around branches. Hatching takes place in spring.

Host plants

Quercus spp, oak

Particular characteristics

These are highly mobile species, visited by ants


In this folder

Modification date : 22 May 2024 | Publication date : 30 November 2016 | Redactor : Evelyne Turpeau, Maurice Hullé, Bernard Chaubet