Leaf-mine: The larva mines about five needles completely out, moving from one needle to the other by way of a silken tube along the twig. Most frass remains in the tube. The larva mines all its life. Pupation external, often in the tube (Bladmineerders van Europa).

Larva: Off white to brownish, head, pronotum and thoracic feet black. Prolegs with c. 22 crochets in a single row. Anal comb absent (Bradley et al., 1979a; Swatschek, 1958a) (Bladmineerders van Europa).

Pupa: Details unknown.

Adult: The adult is illustrated in UKMoths by Adriaan Peeters. The male and female genitalia are illustrated by the Lepidoptera Dissection Group.

Hosts in Britain:

Hosts elsewhere:

Time of year - larvae: Autumn until April or May (Bladmineerders van Europa).

Time of year - adults: Unknown.

Distribution in Great Britain and Ireland: Britain including Bedfordshire, Cambridgeshire, Derbyshire, East Kent, East Norfolk, East Suffolk, Glamorgan, North Essex, North Somerset, Shropshire, Stafford, West Gloucestershire, West Norfolk, West Suffolk 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 (Karsholt and van Nieukerken 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, Bosnia and Herzegovina, Bulgaria, Czech Republic, Danish mainland, Estonia, Finland, French mainland, Germany, Hungary, Italian mainland, Latvia, Liechtenstein, Lithuania, Luxembourg, Norwegian mainland, Poland, Romania, Russia - Central, North and Northwest, Slovakia, Slovenia, Spanish mainland, Sweden, Switzerland, The Netherlands. Also recorded in East Palaearctic and Nearctic region (Karsholt and van Nieukerken in Fauna Europaea).

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

Parasitoids in Britain and elsewhere: Unknown.