Mine only in the leaf lamina (not the mid-rib). Mine not simultaneously
blotch-like (on the upper side or under side) and with very fine
frass grains. Mine not touching the midrib. Mine at least in places
greenish in transmitted light when seen from either the dorsal side
or ventral side. Frass plentiful, irregularly scattered throughout
the mine. Pupation always external. The egg shell lies on the leaf
surface at the beginning of the mine.
Larva: The larvae of flies are leg-less maggots without a head capsule (see examples). They never have thoracic or abdominal legs. They do not have chewing mouthparts, although they do have a characteristic cephalo-pharyngeal skeleton (see examples), usually visible internally through the body wall.
Puparium: The puparia of flies are formed within the hardened last larval skin or puparium and as a result sheaths enclosing head appendages, wings and legs are not visible externally (see examples).
Lychnis flos-cuculi is
treated as Silene flos-cuculi (Ragged-Robin) by Stace (2010).
Hosts in Great Britain & Ireland:
of year - adults: Currently unknown.
Time of year - mines: Currently unknown.
in Great Britain & Ireland: Recorded in Britain by Ackland
(1978) including Cambridgeshire (VC29),
Glamorganshire (VC41), North Somerset and West Gloucestershire (NBN
elsewhere: Widespread in continental Europe (Hering,
1957) including Germany (Griffiths,
1982), Austria, Czech Republic, Denmark, French mainland, Hungary,
Italian mainland and Slovakia (Michelsen in Fauna Europaea).
recorded in the East Palaearctic and Nearctic Regions (Michelsen in Fauna Europaea).
NBN Atlas links to known host species:
British and Irish Parasitoids in Britain and elsewhere: Currently unknown.