W. nervata

Wahlgreniella nervata (Gillette, 1908)

Strawberry tree aphid

1.4-2.7 mm.
Pale green to yellowish
Apterous: antenna ringed at articulations, length same as body, cornicles long and slightly swollen on distal half, cauda long and broad.
Alate: antenna longer than body; cornicles long and slightly swollen on distal half, cauda long and broad, wing veins very dark.

See identification file

Anholocyclic in Europe. Heteroecious holocyclic in North America

Rosa, Arbutus

Wahlgreniella nervata is an American species, introduced into Europe and reported for the first time in England in 1973 on roses. In North America, this species appears to be heteroecious with host alternation between rose bushes, the primary hosts and Ericaceae (Arbutus, Arctostaphylos, Pieris), the secondary hosts. The European populations are apparently anholocyclic on rose bushes.

In this folder

Modification date : 07 February 2023 | Publication date : 22 June 2017 | Redactor : Evelyne Turpeau, Maurice Hullé, Bernard Chaubet