Napomyza cichorii Spencer, 1966b. Proc. R. ent. Soc.
Lond. (B) 35: 34
Napomyza cichorii Spencer, 1966b; Spencer, 1990. Host
specialization in the World Agromyzidae (Diptera) : 259, 265,
266 (fig. 1000)
Napomyza cichorii Spencer, 1966b; Dempewolf, 2001. Larvalmorphologie
und Phylogenie der Agromyzidae (Diptera) : 256.
Normally a borer in stems or flowers. Oviposition generally in the
base of the midrib. The larva tunnels deep in the tissues of leaves
and stem. Pupation in stem or root (Spencer,
1973b) - see also Bladmineerders van Europa.
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.
The larva is described by de Meijere (1926,
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).
Described as a serious pest of cultivated chicory (Cichorium)
in Belgium and The Netherlands (Spencer,
Hosts in Great Britain & Ireland: Currently unknown.
of year - larvae: Currently unknown.
of year - adults: Currently unknown.
in Great Britain & Ireland: England (Spencer,
NBN Grid Map:
elsewhere: Belgium, Switzerland (Spencer,
1990: 265), The Netherlands (Spencer,
1966b; Bladmineerders van Europa), Estonia, Finland, French mainland, Germany, Hungary,
Italian mainland, Lithuania, Spanish mainland, Switzerland and Ukraine
(Martinez in Fauna Europaea).
NBN Interactive Grid Maps of known host species:
British and Irish Parasitoids in Britain and elsewhere: