Euura mucronata (Hartig, 1837)

on Salix

Euura mucronata: galls on Salix cinerea

Salix cinerea, Biddinghuizen, Spijkbos © Arnold Grossurt

Euura mucronata: gall on Salix cinerea

opened gall with frass

Euura mucronata: gall on Salix cinerea

sliced gall

Euura mucronata: gall on Salix caprea

Salix caprea © Roelof Jan Koops

Euura mucronata gall

Salix aurita, Belgium, prov. Liège, Eupen; © Jean-Yves Baugnée

Euura mucronata gall

opened gall, with parasitoid pupa

gall

the catkin-buds are swollen and unusually firm. For the oviposition the wasp’s ovipositor has pierced through the base of petiole, often leaving a clear scar. Inside a single sawfly caterpillar. Often several buds of the same shoot are galled. Univoltine; hibernation in the soil.

hostplants

Salicaceae, narrowly monophagous

Salix aurita, caprea, cinerea.

larva

Third abdominal segment with 3 dorsal annulets. Suranal plate without pseudocerci.

synonyms

Euura gemmacinereae Kopelke, 2001; Euura nigritarsis Cameron, 1885; Cryptocampus saliceti: auctorum nec Fallén 1808..

note

Member of the Euura amerinae species group.

references

Béguinot (2002g, 2006b, 2007b), Bellmann (2012a), Beneš (2014a), Benson (1961a), Houard (1908a), Koops (2013a), Kopelke (1999a, 2001a), Kopelke & Amendt (2002a), Lambinon, Schneider & Chevin (2003a), Liston (2006a), Liston, Heibo, Prous ao (2017a), Mol (2013a), Price, Roininen & Tahvanainen (1987a), Pschorn-Walcher & Altenhofer (2000a, 2006a), Redfern & Shirley (2011a), Roskam (2009a), Savina & Chevin (2012a), Tavares (1905a), Tomasi (2014a), Zinovjev & Vikberg (1998a).

mod 10.xii.2019