Dasineura fraxini (Bremi, 1847)

on Fraxinus

Dasineura fraxini: gall on Fraxinus excelsior

Fraxinus excelsior, Dronten, Roggebotbos © Hans Jonkman

Dasineura fraxini: galls on Fraxinus excelsior

Fraxinus excelsior, Vreeland, Lambertskade: heavily infested leaf

Dasineura fraxini gall

Fraxinus excelsior, Buitenveldert: upperside

Dasineura fraxini gall

underside

Dasineura fraxini gall

transverse section

Dasineura fraxini larvae

larvae, each in its own cell

Dasineura fraxini larva

the wall of the cell is lined with hyaline, swollen cells

Dasineura fraxini gall

sometimes the gall is accompanied by a strong development of hairs on the midrib

Dasineura fraxini gall

detail

Dasineura fraxini: gall on Fraxinus spec.

Fraxinus spec., Hungary, Mosonmagyaróvár © László Érsek

Dasineura fraxini: gall on Fraxinus spec.

gall, pulled open

Dasineura fraxini: larva

Fraxinus spec., Hungary, Győr © László Érsek: larve

gall

Each gal chamber with one yellow larve. One, rarely two, generations per year; hibernation as pupa in the ground.

hostplants

Oleaceae, monophagous

Fraxinus angustifolia subsp. oxycarpa, excelsior, ornus.

inquilines

Clinodiplosis botularia.

Dasineura fraxini: larva and pupa in cocoon

Fraxinus excelsior, Vreeland, Lambertskade: opened gall

notes

The picture above (made in mid August) shows at left two pupae in the remannts of their flimsy cocoon; probably one of them is an inquiline. A strange thing is that the next pouch harbours a young larva; contrary to the decrepit pouch at left, the walls of the right one are still quite untouched.

references

Abras, Fassotte, Chandelier & Cavelier (2008a), Barnes (1951a), Béguinot (2001c, 2002a,d,e,h, 2003a, 2005a, 2006c, 2007a,b, 2012a), Bellmann (2012a), Braggion (2013a), Bruun (2015a), Buhr (1964b), Ceresa (2015a), Chinery (2011a), Coulianos & Holmåsen (1991a), Dauphin & Aniotsbehere (1997a), Ecott (2012a), Hellrigl (2004b), Kollár (2007a, 2011a), Koops (2013a), Lambinon, Carbonelle & Claerebout (2015a), Lambinon & Romain (2009a), Lambinon, Schneider & Feitz (2001b), Lehmann & Hannover (2016a), Máca (2012a), Mirumian (2011a), Pellizzari (2010a), Redfern & Shirley (2011a), Roskam (2009a), Roskam & Carbonelle (2015a), Scapin (2006a), Simova-Tošić, Skuhravá & Skuhravý (1996a, 2000a, 2004a, 2007a), Simova-Tošić, Skuhravá, Skuhravý & Postolovski (2007a), Skrzypczyńska (2007a), Skuhravá (2006a), Skuhravá, Karimpour, Sadeghi ao (2014a), Skuhravá & Skuhravý (1988a, 1994a,b, 1997a, 1999a,b, 2003a, 2005b,c, 2006a, 2007a, 2008a, 2009a, 2010a,b, 2012a), Skuhravá, Skuhravý, Blasco-Zumeta & Pujade-Villar (2006a), Skuhravá, Skuhravý & Buhr (2013a), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), Skuhravá, Skuhravý, Dončev & Dimitrova (1991a, 1992a), Skuhravá, Skuhravý & Hellrigl (2001a), Skuhravá, Skuhravý & Jørgensen (2006a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý, Skrzypczyńska & Szadziewski (2008a), Sylvén (1960a), Tomasi (2003a, 2012a).

pub 24.v.2017 · mod 23.viii.2017