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characteristic leaf mine


dorsal bulbs of distiphallus

Nomenclature

Liriomyza strigata (Meigen 1830)

Agromyza strigata Meigen 1830
Agromyza pumila Meigen 1830
Agromyza violae Curtis 1844
Agromyza galeopsios Hardy 1853

Hosts

 A polyphagous species recorded from 240 host plant genera in 35 plant families worldwide (Spencer 1990).

Distribution

Africa: Morocco
Asia: Malaysia, Thailand, Turkey
Europe: Albania, Belarus, Belgium, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Ireland, Italy, Lithuania, Madeira, Norway, Poland, Romania, Slovakia, Spain, Sweden, Switzerland, The Netherlands, United Kingdom

Key characters

Liriomyza strigata is very similar to L. bryoniae and L. huidobrensis in adult morphology (Dempewolf 2004; EPPO 2005). Liriomyza strigata is generally lighter than L. huidobrensis with the inner vertical bristle on yellow ground, but darker than L. bryoniae, particularly on the hind margin of the eye. This species can be readily distinguished from L. bryoniae by the characteristic mines associated with the midrib of the leaves.  Larva with posterior spiracles each with 10 to 12 pores. Because this species is so similar to L. huidobrensis and L. bryoniae, very careful examination of the mines is required before authoritative identifications can be made.There are now robust molecular diagnostic tests to distinguish between the major polyphagous Liriomyza spp. including L. strigata (Kox et al. 2005; Masetti et al. 2006).

Notes

The larva of L. strigata forms a distinctive leafmine closely following the main vein toward (and occasionally into) the petiole. It is not considered to be an important pest of agricultural and horticultural crops (Spencer 1989). The eastern boundary of the distribution is not clear, but the old records from Asia need to be re-examined.

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References

Curtis J (1844). Agromyza violae (the pansy fly). Gardeners' Chronicle. April 20: 244-245.

Dempewolf M (2004). Arthropods of Economic Importance - Agromyzidae of the World (CD-ROM). ETI. University of Amsterdam, Amsterdam. https://agromyzidae.linnaeus.naturalis.nl/linnaeus_ng/app/views/introduction/topic.php?id=3309&epi=55

EPPO (2005). Liriomyza spp. EPPO Bulletin 35: 335-344.

Hardy J (1853). The hemp nettle, ragwort, bean, tare, and daisy leaf-miner. The Scottish Gardener 2: 370-373

Kox LFF, van den Beld HE, Lindhout BL & de Goffau LJW (2005). Identification of economically important Liriomyza species by PCR-RFLP analysis. EPPO Bulletin 35: 79-85.

Masetti A, Luchetti A, Mantovani B & Burgio G (2006). Polymerase chain reaction-restriction fragment length polymorphism assays to distinguish Liriomyza huidobrensis (Diptera: Agromyzidae) from associated species on lettuce cropping systems in Italy. Journal of Economic Entomology 99: 1268-1272.

Meigen JW (1830). Systematische Beschreibung der bekannten europäischen zweiflügeligen Insekten. Sechster Theil mit zwölf Kupfertafeln 6: 166-196.

Spencer KA (1989) Leaf miners. In Plant Protection and Quarantine, Vol. 2, Selected Pests and Pathogens of Quarantine Significance (ed. Kahn RP). CRC Press, Boca Raton, pp. 77-98.

Spencer KA (1990). Host specialization in the world Agromyzidae (Diptera). Series Entomologica 45. Kluwer Academic Publishers, Dordrecht. 444 pp.

WWW Resources

Liriomyza strigata in Dempewolf M (2004). Arthropods of Economic Importance - Agromyzidae of the World

Liriomyza strigata in Edmunds R et al. (2008). British leafminers

Liriomyza strigata in Pitkin B, Ellis W, Plant C & Edmunds (2008). The leaf and stem mines of British flies and other insects

Liriomyza strigatalarvae in Ellis WN (2018). Plant Parasites of Europe - leafminers, galls and fungi

Liriomyza strigata in Martinez M (2007). Fauna Europaea: Agromyzidae. In Pape T (ed.) (2007) Fauna Europaea: Diptera: Brachycera. Version 1.3 [128221]