C. theobaldi

Cavariella theobaldi (Gillette & Bragg, 1918)

Parsnip aphid

Cavariella theobaldi : adulte aptère
Cavariella theobaldi : adulte ailé
Cavariella theobaldi : nymphes
Cavariella theobaldi : colonie

Morphology

1.8-2.8 mm.      
Apterous: green, cornicles straight, caudicle on abdominal segment 8.
Alate: green, abdomen with dark patch, antennae short, cornicles straight, moderately long and pigmented, cauda short, presence of a caudicle on abdominal segment 8.

See identification file

Life cycles

Dioecious holocyclic.

Hosts plants

Primary hosts: Salix fragilis (crack willow). Salix alba (white willow).
Secondary hosts: Apiaceae: Pastinaca (parsnip), Angelica, Heracleum (hogweed)

Particular characteristics

C. theobaldi colonizes especially the umbels of parsnips.

 

 

In this folder

Modification date: 22 May 2024 | Publication date: 18 July 2012 | By: Evelyne Turpeau, Maurice Hullé, Bernard Chaubet