Contarinia tragopogonis Kieffer, 1909

on Tragopogon

Contarinia tragopogonis: gall flower head of Tragopogon pratensis

Tragopogon pratensis, Denmark © Simon Haarder: the flower had is hardly modified

Contarinia tragopogonis: larvae in gall

opened gall: also larvae under the receptacle, in the hollow stem; veel of the fruits show damage

gall

The flower heads are somewhat disfigured and swollen, and do not open. Inside several bone coloured larvae live free among the achenes; they can jump. Several generations; pupation in the ground.

host plants

Asteraceae,monophagous

Tragopogon dubius, pratensis.

references

Bruun (2015a), Buhr (1965a), Dauphin & Aniotsbehere (1997a), Gagné (2010a), Kieffer (1909a), Redfern & Shirley (2011a), Simova-Tošić, Skuhravá & Skuhravý (2000a, 2004a, 2007a), Skuhravá & Skuhravý (1999a,b, 2011a), 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 (2014a).

mod 9.xii.2018