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 flavopicta Hendel, 1931
[Diptera: Agromyzidae]

Liriomyza flavopicta Hendel, 1931. Fliegen palaearkt. Reg. 6(2): 222
Liriomyza flavopicta Hendel, 1931; Spencer, 1972b. Handbk ident. Br. Ins. 10(5g): 53 (fig. 178), 55, 111
Liriomyza flavopicta Hendel, 1931; Spencer, 1976. Fauna ent. Scand. 5(1): 248, fig. 432.
Liriomyza flavopicta Hendel, 1931; Spencer, 1990. Host specialization in the World Agromyzidae (Diptera) : 300 (fig. 1154), 301, 303.

Stem-miner: A narrow external stem mine on upper part of stem below flower head. Pupation external (Spencer, 1976: 246).

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:

Asteraceae        
Achillea millefolium Yarrow British Wild Flowers by John Somerville et al. Mines in BMNH
Achillea millefolium Yarrow British Wild Flowers by John Somerville et al. Spencer, 1972b: 111

Hosts elsewhere:

Asteraceae        
Achillea millefolium Yarrow British Wild Flowers by John Somerville et al. Spencer, 1976: 248
Achillea millefolium Yarrow British Wild Flowers by John Somerville et al. Spencer, 1990: 303

Time of year - mines: August.

Time of year - adults: Currently unknown.

Distribution in Great Britain and Ireland: Middlesex (Scratch Wood - mines only) (Spencer, 1972b: 55); Glamorgan, North Somerset and South-west Yorkshire (NBN Atlas).

Distribution elsewhere: Western Europe, uncommon (Spencer, 1990) including Sweden, Finland and N. Germany (Spencer, 1976: 248), Czech Republic, French mainland, Lithuania and Poland (Fauna Europaea).

NBN Atlas links to known host species:

Achillea millefolium

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
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