Rabdophaga pierreana (Kieffer, 1909)

on Salix

Rabdophaga pierreana: gall on Salix cinerea

gall on Salix cinerea, England, Dorset © Jenny Seawright; the two holes probably are exits of parasitoids

Rabdophaga pierreana: gall

opened gal

Rabdophaga pierreana: opened gall with parasitoids

detail, met parasitoiden

Rabdophaga pierreana: parasitoid

parasitoid

Rabdophaga pierreana: gall on Salix cinerea

Salix cinerea, Belgium, prov. Namur, Romedenne; leg. Sébastien Carbonnelle © Gilles San Martin

Rabdophaga pierreana: gall on Salix cinerea

opened gall

gall

Strong, almost ovoid swelling at the tip of a young shoot, its outside often almost felty hairy; the wall is thin and fleshy. One, proportionally large, gall chamber with up to 22 red larvae. Against end of May fissures form at the bases of leaves that in the mean time have formed on the galls, enabling the larvae to leave and pupate in he soil. The spatula of the larva is yellow; the widened apical part is divided by a sharp incision in two lobes that are longer than wide.

hostplants

Salicaceae,monophagous

Salix aurita, caprea, cinerea, myrsinifolia.

Perhaps also hastata (Buhr).

synonyms

Dasineura, Perrisia, pierreana.

references

Barnes (1951a), Buhr (1965a), Dauphin & Aniotsbehere (1997a), Gagné (2010a), Gagné & Jaschhof (2014a, Kieffer (1909a), Redfern & Shirley (2011a), Skuhravá & Skuhravý (2003a, 2010a), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý & Hellrigl (2002a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý, Skrzypczyńska & Szadziewski (2008a), Stelter (1980a), Tomasi (2014a).

mod 2.v.2018