The leaf and stem mines of British flies and other insects

(Coleoptera, Diptera, Hymenoptera and Lepidoptera)

by Brian Pitkin, Willem Ellis, Colin Plant and Rob Edmunds


Cerodontha unisetiorbita Zlobin, 1992
[Diptera: Agromyzidae]

Cerodontha unisetiorbita Zlobin, 1992.

Leaf-miner: Broad, uppersurface blotch (Bladmineerders van Europa).

The mines are pale-green intially, but turn brown with ageing. They are uppersurface and broad. A large leaf may contain several mines, which may merge. Pupation is in the mine (British leafminers).

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).

See Černý & Roháček (2015a) (Bladmineerders van Europa).

Hosts in Great Britain and Ireland:

Phyllostachys aureosulcata spectabilis Bamboo   Heckford, R.J, 2017

Hosts elsewhere: Fargesia; Phyllostachys atrovaginata, aureosulcata, “mitis”, nuda, parvifolia.

Fargesia       Bladmineerders van Europa
Phyllostachys       Černý & Roháček 2015a
Phyllostachys atrovaginata     Bladmineerders van Europa
Phyllostachys “mitis”     Bladmineerders van Europa
Phyllostachys nuda     Bladmineerders van Europa
Phyllostachys parvifolia     Bladmineerders van Europa

Time of year - mines: December (British leafminers).

Time of year - adults: Currently unknown.

Distribution in Great Britain and Ireland: Recorded from a garden centre, Carkeel, Cornwall (British leafminers).

Distribution elsewhere: The species has been described in Japan. After the first records from Italy the species is known now also from Switzerland, Czechia, Germany and the UK. (Bladmineerders van Europa).

NBN Atlas links to known host species:


British and Irish Parasitoids in Britain and elsewhere: Unknown.

External links: Search the internet:
Biodiversity Heritage Library
Bladmineerders van Europa
British leafminers
Encyclopedia of Life
Fauna Europaea
NBN Atlas
NHM UK Checklist
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