Liriomyza angulicornis [Diptera: Agromyzidae] in Leaf and stem mines of British flies and other insects

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

Liriomyza angulicornis (Malloch, 1918)
[Diptera: Agromyzidae]

Agromyza angulicornis Malloch, 1918. Can. Ent. 50: 79
Liriomyza triglochin Hendel, 1931. Fliegen palaearkt. Reg. 6(2): 253
Liriomyza angulicornis (Malloch, 1918); Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 50
Liriomyza angulicornis (Malloch, 1918); Spencer, 1976. Fauna ent. Scand. 5(1): 230, figs 388-90.
Liriomyza angulicornis (Malloch, 1918); Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 339 (figs 1285-8), 340, 341.

Leaf-miner: A long narrow leaf-mine which winds round the filiform leaves and can penetrate deeper into the parenchyma, becoming invisible. Pupation internal (Spencer, 1976: 230).

Narrow corridor, spiralling around the leaves. Often part of the corridor in the deeper layers of the leaf. Frass in strings. Pupation generally within 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).

Reddish; posterior spiracles each with 3 rather large bulbs (Spencer, 1976: 230).

Comments: Both Liriomyza angulicornis and Liriomyza latipalpis can occur in the same plant (Spencer, 1990).

Hosts in Great Britain and Ireland:

Juncaginaceae
Triglochin	maritimum	Sea Arrowgrass	Mines in BMNH
Triglochin	maritimum	Sea Arrowgrass	Spencer, 1972b: 125
Triglochin	palustre	Marsh Arrowgrass	Spencer, 1972b: 125

Hosts elsewhere:

Juncaginaceae
Triglochin	maritimum	Sea Arrowgrass	Spencer, 1990: 340
Triglochin	maritimum	Sea Arrowgrass	Spencer, 1976: 230
Triglochin	maritimum	Sea Arrowgrass	von Tschirnhaus, 1981
Triglochin	maritimum	Sea Arrowgrass	Bladmineerders van Europa
Triglochin	palustre	Marsh Arrowgrass	Spencer, 1990: 340
Triglochin	palustre	Marsh Arrowgrass	Spencer, 1976: 230
Triglochin	palustre	Marsh Arrowgrass	von Tschirnhaus, 1981

Time of year - mines: July-August.

Time of year - adults: Currently unknown.

Distribution in Great Britain and Ireland: Kent (Gravesend), Dorset (Studland), Suffolk (Aldeburgh and Barton Mills) (Spencer, 1972b: 125); Anglesey, Glamorgan and West Norfolk (NBN Atlas).

Distribution elsewhere: Widespread in continental Europe including Denmark, Finland, Sweden (Spencer, 1976: 230), Germany, Lithuania and Poland (Fauna Europaea).

Also recorded in the U.S.A. and Canada (Spencer, 1976: 230).

NBN Atlas links to known host species:

Triglochin maritimum, Triglochin palustre

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	Find using Google Find using Google Scholar Find images using Google


	Last updated 05-Sep-2017 Brian Pitkin