Liriomyza tragopogonis (de Meijere, 1928)
[Diptera: Agromyzidae]


Liriomyza tragopogonis de Meijere, 1928. Tijdschr. Ent. 71: 161.
Liriomyza tragopogonis de Meijere, 1928; Spencer, 1972. Handbk ident. Br. Ins. 10(5g): 53 (figs 176-7), 55, 57, 115.
Liriomyza tragopogonis de Meijere, 1928; Spencer, 1976. Fauna ent. Scand. 5(1): 266-7, figs 492-3.
Liriomyza tragopogonis de Meijere, 192; Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 259, 263, 264 (figs 994-5).


Leaf-mine: Green, later brownish corridor or more often an elongated whitish linear blotch overlying the midrib. The mine has short, irregular side branches. Frass in irrgular, dispsersed grains. Pupation outside the mine (Bladmineerders van Europa; Spencer, 1972: 53 (fig. 177); Spencer, 1976: 273 (fig. 493), 275).

Larva: The larva is described by de Meijere (1928). Posterior spiracles each with an ellipse of 7-10 bulbs (Spencer, 1972: 55).

Puparium: Orange; posterior spiracles each with an ellipse of 7-10 bulbs (Spencer, 1976: 275).

Hosts in Britain:

Asteraceae      
Tragopogon porrifolius Salsify Robbins, 1991: 123
Tragopogon pratensis Goat's-beard Mines in BMNH
Tragopogon pratensis Goat's-beard Spencer, 1972: 115

Hosts elsewhere:

Asteraceae      
Tragopogon porrifolius Salsify Bladmineerders van Europa
Tragopogon pratensis Goat's-beard Bladmineerders van Europa
Tragopogon pratensis Goat's-beard Spencer, 1990: 263

Time of year - mines: July, October.

Time of year - adults: Unknown.

Distribution in Great Britain and Ireland: Widespread in Britain including London (Cripplegate); Middlesex (Scratch Wood); Essex (Stanford-Le-Hope), Norfolk (Norwich) (Spencer, 1972: 55, as L. tragopogonis), Warwickshire (Coventry, Holbrooks) (Robbins, 1991: 123); North Somerset and South-west Yorkshire (NBN Gateway - N.B. includes Watsonian Vice Counties having publicly available records that fall within or overlap the vice county border at 10km resolution or better i.e. a record for a vice county may relate to an adjacent vice county - for included datasets see NBN Grid map below).

NBN Grid map: Note that not all datasets on the NBN Gateway may be available on the map below. If you are an NBN Gateway registered user you can request access for missing datasets via the link 'Open interactive map in new window' below.

Distribution elsewhere: Widespread in continental Europe including Sweden (Spencer, 1976: 267), Germany (Bladmineerders van Europa; Spencer, 1976: 562), Estonia, Hungary, Lithuania and Poland (Martinez in Fauna Europaea).

NBN interactive distribution map(s) of known host species in Great Britain and Ireland and elsewhere:

Tragopogon porrifolius, Tragopogon pratensis

Parasitoids in Britain and elsewhere:

Diglyphus isaea (Walker) Hymenoptera: Eulophidae


External links: Search the internet:
Biodiversity Heritage Library
Bladmineerders van Europa
British leafminers
Encyclopedia of Life
Fauna Europaea [128236]
NBN Gateway
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Last updated 25-Jan-2012  Brian Pitkin Top of page