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


Phytoliriomyza arctica (Lundbeck, 1901)
[Diptera: Agromyzidae]

Agromyza arctica Lundbeck, 1901. Vidensk. Meddr. dansk. naturh. Foren. 1900 (6)2: 304
Odinia immaculata Coquillet, 1902. J. New Yorkshire ent. Soc. 10: PAGE
Agromyza halterata Becker, 1908b. Zeitschr. f. Hym. u. Dipt. VIII: 169
Agromyza formosensis Malloch, 1914. Ann. hist.-nat. Mus. hung. 12: 315
Phytoliriomyza arctica (Lundbeck, 1901); Spencer, 1964b. Ann. Mag. nat. Hist. (13) vii: 659-60
Phytoliriomyza arctica (Lundbeck, 1901); Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 61, 115
Phytoliriomyza arctica (Lundbeck, 1901); Spencer, 1976. Fauna ent. Scand. 5(1): 292-4, figs 524-6
Phytoliriomyza arctica (Lundbeck, 1901); Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 153, 259, 262 (fig. 978), 274, 275.

Stem-miner: External stem-miner (Spencer, 1972b: 61).

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:

Sonchus oleraceus Smooth Sow-thistle British Wild Flowers by John Somerville et al. Robbins, 1991: 125
Sonchus oleraceus Smooth Sow-thistle British Wild Flowers by John Somerville et al. Spencer, 1972b: 61, 115

Hosts elsewhere:

Crepis       Spencer, 1990: 259
Lapsana       Spencer, 1990: 259
Solidago canadensis Canadian Goldenrod British Wild Flowers by John Somerville et al. Spencer, 1990: 275
Sonchus       Spencer, 1976: 294
Sonchus       Spencer, 1990: 259

Time of year - mines: Currently unknown.

Time of year - adults: July-August.

Distribution in Great Britain and Ireland: Uncommon, but locally abundant including London (Cripplegate), Essex (Flatford) and Huntingdonshire (Woodwalton Fen) (Spencer, 1972b: 61); Glamorgan (NBN Atlas).

Distribution elsewhere: Cosmopolitan. Widespread in continental Europe including Denmark, Finland (Spencer, 1976: 294), Azores, Balearic Is., Canary Is, Czech Republic, Denmark, European Turkey, Finland, Germany, Greek mainland, Hungary, Italian mainland, Lithuania, Madeira, Poland, Sicily, Spanish mainland and Switzerland (Fauna Europaea).

Also recorded in Brazil (Spencer, 1976: 294) and Canada (Spencer, 1969a: 202; Spencer, 1990: 275), Afro-tropical, Australian, East Palaearctic and Oriental regions (Fauna Europaea).

NBN Atlas links to known host species:

Sonchus oleraceus, Solidago canadensis

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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