Stem-miner: Larva forms an external stem mine which quickly turns black. Pupation internal, puparium projecting out of mine (Spencer, 1972: 52; Spencer, 1976: 276).

Larva: The larva is described by Dempewolf (2001: 153).

Puparium: Dark, posterior spiracles conspicuous enlarged, laterally extended processes, each with up to 40 minute bulbs (Spencer, 1972: 52; Spencer, 1976: 276).

Comments: The larvae occur most commonly on plants actually growing in water (Spencer, 1976: 276).

Hosts in Britain:

Hosts elsewhere:

Time of year - mines: Unknown.

Time of year - adults: June.

Distribution in Great Britain and Ireland: Widespread in northern Britain including Stafford (Newcastle-under-Lyme) (Spencer, 1972: 52); Glamorgan (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 Denmark, Finland and Sweden (Spencer, 1976: 276), Germany (Dempwolf, 2001: 153), Czech Republic, Estonia, French mainland, Lithuania, Poland and The Netherlands (Martinez in Fauna Europaea).

Also recorded in Alaska (Spencer, 1976: 276).

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

Parasitoids in Britain and elsewhere: Unknown.