Leaf-mine: Blotch mine. Pupation external.

The mine begins as an elongated blotch overlying a strong vein; from there broad tunnels radiate that coalesce in the end. All frass is concentrated at a central point in the floor of the mine. As a result the mine has a brownish-black centre and a paler brownish green seam. The larva often (perhaps always at daylight) rests in the centre of the mine. Primary and secondary feeding lines as a rule quite clear. Pupation outside the mine (Bladmineerders van Europa).

An elongated blotch centred over a vein. There are two types: greenish with a blackish centre and entirely reddish-black (British leafminers).

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

Puparium: Yellow; anterior spiracle openings arranged in large arcs, not elevated on a fan-shaped structure; posterior spiracles each with a central opening larger and more raised than the lateral openings (White, 1988: 63). The puparium is illustrated in Bladmineerders van Europa.

Trypeta artemisiae puparia Image: Willem Ellis (Bladmineerders van Europa)

Comments: Uffen in Chandler (1978) did not indicate whether his host records were British of Foreign and therefore the associations are included under 'Host in Britain' and 'Hosts elsewhere'.

Hosts in Britain:

Hosts elsewhere:

Time of year - mines: September-October.

Time of year - adults: ? June.

Distribution in Great Britain and Ireland: Throughout Britain, more common in the north than in the south (White, 1988: 63) including Warwickshire (Packington) (Robbins, 1991: 119); Dorset, Durham, Glamorgan, Hertfordshire, Mid-west Yorkshire, North Hampshire, North Wiltshire, North-west Yorkshire,
Shropshire, South Hampshire, South-east Yorkshire, Stafford, Surrey, Warwickshire and Westmorland
(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: Throughout the Palaearctic Region, except the Mediterranean and Middle Eastern areas (White, 1988: 63), including The Netherlands, Luxembourg (Bladmineerders van Europa) and Belgium (Leclercq and de Bruyn, 1991). See also Fauna Europaea.

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

Parasitoids in Britain and elsewhere: