Janetiella lemeei (Kieffer, 1904)

on Ulmus

Janetiella lemeei: galls on Ulmus

Ulmus spec., hungary, Halászi © László Érsek

Janetiella lemeei: galls on Ulmus

the upper side of the midrib is locally cartilaginous and swollen

Janetiella lemeei: galls on Ulmus

underside

Janetiella lemeei: galls on Ulmus

three galls

Janetiella lemeei: galls on Ulmus

enlarged

Janetiella lemeei: galls on Ulmus glabra

Ulmus glabra, Belgium, East Flanders, Geraardsbergen, Moerbekebos @ Bart Uitterhaegen

Janetiella lemeei: galls on Ulmus glabra

same leaf, underside

Janetiella lemeei: galls on Ulmus glabra

detail of the upper side

Janetiella lemeei: galls on Ulmus glabra

detail of the underside

gall

Galls, mostly in a group, usually on the thick leaf veins, less often the petiole or even a young twig. They consist of a weak bulge at one side, and a short broad tube at the other side. Ech gall houses a yellow larva. Univoltine, hibernation in the ground.

hostplants

Ulmaceae, monophagous

Ulmus glabra, laevis, minor.

larva

Janetiella lemeei: spatula

prosternum with spatula (from Möhn, 1955a)

synonyms

Oligotrophus lemeei. The much used spelling J. lemei is incorrect (Gagné, 2010a).

references

Barnes (1951a), Béguinot (2006c), Bruun (2015a), Buhr (1965a), Chinery (2011a), Cilbircioğlu & Ünal (2009a), Dauphin & Aniotsbehere (1997a), Gagné (2010a), Houard (1908a), Ilie & Marinescu (2011a), Lambinon Schneider & Feitz (2012a), Mohn (1955a), Roskam (2009a), Roskam & Carbonnelle (2015a), Simova-Tošić & Skuhravá (2001a), Simova-Tošić, Skuhravá & Skuhravý (1996a, 2000a, 2004a, 2007a), Simova-Tošić, Skuhravá, Skuhravý & Postolovski (2007a), Skrzypczyńska (2007a), Skuhravá, Bayram, Çam ao (2005a), Skuhravá & Skuhravý (1988a, 1994a, 1997b, 1999a, 2008a), Skuhravá, Skuhravý, Blasco-Zumeta & Pujade-Villar (2006a), Skuhravá, Skuhravý, Dončev & Dimitrova (1991a, 1992a), Skuhravá, Skuhravý & Jørgensen (2006a), Skuhravá, Skuhravý & Meyer (2014a), Skuhravá, Skuhravý & Neacsu (1972a), Skuhravá, Skuhravý, Skrzypczyńska & Szadziewski (2008a), Tomasi (2003a, 2014a), Unal & Akkuzu (2009a).

mod 16.vi.2018