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Liriomyza yasumatsui Sasakwa, 1972
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larva in mine


Food Plant: Artemisia vulgaris (Mugwort); elsewhere Artemisia princeps, Artemisia sp, Chrysanthemum sp

Mine: ? -September

Notes: Forms a gallery mine on Artemisia vulgaris (as shown, with larva in mine). The mine is very similar to that of Liriomyza artemisicola and Liriomyza demeijerei and so adults must be bred to confirm this species. It pupariates externally, with the puparium posterior spiracle having three bulbs. It is unknown if it was introduced into Europe through the horticultural trade or is a widespread Eurasian species. First discovered in 2018 in the UK (Warrington, 2018) from an adult swept from a site in Hull, East Yorkshire (VC61) in September 2018 by BPW. This is the first time this leafmine has been illustrated and the host was unknown in the UK until an adult was bred from the mine shown by BPW.

Data: ix.2018, Hessle, South-east Yorkshire, VC61

Image:© Barry Warrington

Recording Grade: 5

Papp L & Cerný M (2017), Agromyzidae (Diptera) of Hungary. 3. Phytomyzinae 2.

Malipatil,M B , Ridland, P M, Aunu, R, Watung, J & Kandowangko, D, (2004). New records of Liriomyza Mik (Agromyzidae: Diptera) leafminers from Indonesia. Formosan Entomol. 24. 287-292.
Sasakawa, M (1994), Notes on the Japanese Agromyzidae (Diptera), 3 Liriomyza-miners on Artemisia spp. (Asteraceae),Jpn. J. Ent,, 62 (1): S5-64
Shiao SF, Lin FJ & Lu WJ (1991). Redescription of four Liriomyza species (Diptera: Agromyzidae) from Taiwan. Chinese Journal of Entomology 11: 65-74
Warrington, BP (2018), Liriomyza yasumatsui (Diptera, Agromyzidae) new to Britain, Dipterists Digest, 25, 165-167

sponsored by Colin Plant Associates (UK) LLP/Consultant Entomologists