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 varipes Macquart, 1835
[Diptera: Agromyzidae]

Phytomyza varipes Macquart, 1835. Hist. nat. Ins. Dipt. 2: 618
Phytomyza stylata Meigen, 1838. Systematische Beschreibung der bekannten europaischen zweiflugeligen Insekten. 7: 404
Phytomyza varipes Macquart, 1835; Hendel, 1935. Fliegen palaearkt. Reg. 6(2): 495
Phytomyza varipes Macquart, 1835; Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 75, 120
Phytomyza varipes Macquart, 1835; Spencer, 1976. Fauna ent. Scand. 5(1): 523-4, figs 916-7.
Phytomyza varipes Macquart, 1835; Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 222, 228 (fig. 863), 229.

Seed-feeder: Larva feeding and pupating in seed-heads (Spencer, 1976: 524).

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).

Black, flattened, shining (Spencer, 1976: 524).

Hosts in Great Britain and Ireland:

Rhinanthus minor Yellow-rattle British Wild Flowers by John Somerville et al. Spencer, 1972b: 120
Rhinanthus minor subsp. calcareus     Spencer, 1972b: 120

Hosts elsewhere:

Rhinanthus       Spencer, 1976: 524
Rhinanthus       Spencer, 1990: 222

Time of year - larvae: Currently unknown.

Time of year - adults: July-August.

Distribution in Great Britain and Ireland: Cambridge (Wicken Fen), Suffolk (Barton Mills), Is. of Lewis (Spencer, 1972b: 75), Inner Hebrides (Isle of Coll) (Bland, 1992); Cambridgeshire, East Suffolk, Glamorgan, North Somerset, South-west Yorkshire and West Suffolk (NBN Atlas).

Also recorded in the Republic of Ireland: Co. Clare (the Burren), nr. Dublin (Spencer, 1972b: 75).

Distribution elsewhere: Widespread in continental Europe including Denmark, Estonia, Faroe Is., Finland, French mainland, Germany, Hungary, Italian mainland, Lithuania, Norwegian mainland, Poland, Sweden, The Netherlands (Fauna Europaea) and Iceland (Spencer, 1976: 524).

Also known from Canada (Nova Scotia) (Spencer, 1976: 524).

NBN Atlas links to known host species:

Rhinanthus minor

British and Irish Parasitoids in Britain and elsewhere:

Seladerma geniculatum (Zetterstedt, 1838) Pteromalidae: Miscogastrinae

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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