Leaf-mine: The mine begins in the midrib, especially in a lower leaf, extending into the leaf disc, branching irregularly or pinnately, may also locally be blotch like. The mine is brown and very transparent. Sides very irregularly eaten out. Frass loosely dispersed or in a loose central line, buy may also be pressed against the sides of the corridor. The larva may also leave the mine and restart elsewhere (Bladmineerders van Europa).

Forms an irregular branched corridor mine associated with the midrib or from the petiole. The larvae changes leaves and the mine develops into a blotch in the second leaf (British leafminers).

Larva: The larva is illustrated in British leafminers and Bladmineerders van Europa.

Orthochaetes setiger larva, dorsal Image: Jean-Yves Baugnée (Bladmineerders van Europa)

Pupa: Details unknown.

Comments: Leontodon autumnalis is treated as Scorzoneroides autumnalis (Autumn Hawkbit) by Stace (2010).

Hosts in Britain:

Hosts elsewhere:

Time of year - larvae: May-July (British leafminers).

Time of year - adults: Unknown.

Distribution in Great Britain & Ireland: Widespread in Britain including Anglesey, Bedfordshire, Caernarvonshire, Cambridgeshire, Cardiganshire, Cumberland, Derbyshire, East Gloucestershire, East Kent, East Norfolk, East Suffolk, East Sussex, Glamorgan, Hertfordshire, Huntingdonshire, Leicestershire, Mid-west Yorkshire, North Devon, North Somerset, North Wiltshire, North-east Yorkshire, Northamptonshire, Oxfordshire, Pembrokeshire, South Essex, South Hampshire, South Lancaster, South Somerset, South Wiltshire, South-east Yorkshire, Surrey, West Cornwall, West Gloucestershire, West Kent, West Norfolk, Westmorland and Worcestershire (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).

Also recorded in the Republic of Ireland (Alonso-Zarazaga in Fauna Europaea).

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 Austria, Belgium, Bulgaria, Czech Republic, Danish mainland, French mainland, Hungary, Italian mainland, Poland, Portuguese mainland, Romania, Sicily, Slovakia, Spanish mainland, Sweden, Switzerland, The Netherlands and Ukraine (Alonso-Zarazaga in Fauna Europaea).