Rabdophaga heterobia (Loew, 1850)

Diptera, Cecidomyiidae

on Salix

Rabdophaga heterobia gall on Salix triandra

Salix triandra, female catkin, Hungary, Mosonmagyaróvár © László Érsek

Rabdophaga heterobia gall on Salix triandra

part of the fruitlets is disfigured, yellowed, swollen

Rabdophaga heterobia gall on Salix triandra

larvae in the galls

Rabdophaga heterobia gall on Salix triandra

opened

Rabdophaga heterobia: larvae or puparia

cocoon and puparia

Rabdophaga heterobia gall on Salix triandra

puparia

Rabdophaga heterobia gall

Salix triandra, male catkin, Belgium, prov. Namur, Barvaux-Condroz © Jean-Yves Baugnée

Rabdophaga heterobia: second generation gall on Salix triandra

Salix triandra, Belgium, prov. Namur, Couvin, Boussu-en-Fagne © Sébastien Carbonelle: gall of the summer gneration

Rabdophaga heterobia: gall of the summer generation

Salix triandra, Hungary, Mosonmagyaróvár © László Érsek

Rabdophaga heterobia: gall, summer genaration

another specimen

Rabdophaga heterobia: gall of the summer generation

opened gall

Rabdophaga heterobia: mature larvae

mature larvae

Rabdophaga heterobia: puparia

puparia

gall

Larvae of the spring generation make a gall in the male catkins, where they also pupate. The gall of the summer generation is a swollen bud that only partly opens into a hairy rosette, where several orange-red larvae are living.

hostplants

Salicaceae, strictly monophagous

Salix triandra.

Béguinot (2012a) reports Salix arbuscula and purpurea; this almost certainly is incorrect.

synonyms

Dasineura heterobia.

Gagné & Jaschhhof mention as a synonym also Rabdophaga amenticola (Kieffer, 1909); this is surprising because the larvae of thst species live in the (female) catkins of Salix retusa.

notes

According to the literature there are two genertions: a hibernating generation that in spring causes catkin-galls, and a summer generation galling terminal buds. This seems incorrect: the pictures of the summer gall from Hungary were made in spring, even a few days before those of the spring generation (May 1st and 5th, respectively) This rather suggests that both gall types are caused simultaneously by the same generation. It is not clear if this generation is followed by a second one that obviously can only cause bud galls.

inquilines

Lestodiplosis heterobiae.

references

Barnes (1951a), Béguinot (2002g,h, 2007b, 2012a), Bellmann (2012a), Braggion (2013a), Buhr (1965a), Cilbircioğlu & Ünal (2009a), Dauphin & Aniotsbehere (1997a), Gagné (2010a), Gagné & Jaschhhof (2024a), Ilie & Marinescu (2011a), Lambinon Schneider & Feitz (2012a), Lehmann & Hannover (2016a), Mirumian (2011a), Redfern & Shirley (2011a), Roskam (2009a), Simova-Tošić, Skuhravá & Skuhravý (1996a, 2000a, 2004a, 2007a), Skrzypczyńska (2007a), Skuhravá (2006a), Skuhravá, Bayram, Çam ao (2005a), Skuhravá, Karimpour, Sadeghi ao (2014a), Skuhravá (1989a), Skuhravá & Skuhravý (1994a, 1997a, 1999a, 2010a), Skuhravá, Skuhravý, Blasco-Zumeta & Pujade-Villar (2006a), Skuhravá, Skuhravý & Buhr (2013a), Skuhravá, Skuhravý, Dauphin & Coutin (2005a), 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).

22/05/2017

pub 24.v.2017 · mod 28.vi.2017