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


Phytomyza sitchensis Griffiths, 1973
[Diptera: Agromyzidae]

Phytomyza sitchensis Griffiths, 1973a. Quaestiones ent. 9:PAGE
Phytomyza sitchensis Griffiths, 1973a; Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 160, 173, 174 (fig. 650), 177.

Leaf-mine: Large, upper-surface blotch of unchanging depth, occu[ying a large section of a leaf segment. Frass in scattered grains. Secundary feeding lines not recognisable. Pupation outside the mine (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.

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).

Hosts in Great Britain and Ireland: Currently unknown.

Hosts elsewhere:

Conioselinum       Spencer, 1990: 160
Conioselinum chinense     Bladmineerders van Europa

Time of year - larvae: Currently unknown.

Time of year - adults: Currently unknown.

Distribution in Great Britain and Ireland: Added to British checklist by Henshaw in Chandler, 1998. England (Spencer, 1990: 173).

Distribution elsewhere: Described from Alaska and since discovered in the mountains of southern Germany (Spencer, 1990: 173; Fauna Europaea).

NBN Atlas links to known host species:

Host species unknown

British and Irish Parasitoids in Britain and elsewhere: Currently 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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