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aedeagus (A. Ames)

aedeagus (Malipatil et al. 2004)


Liriomyza yasumatsui Sasakawa 1972


Artemisia princeps, Artemisia sp., Chrysanthemum sp. (Asteraceae)
(Malipatil et al. 2004; Sasakawa 1994;  Shiao et al. 1991)


Asia:  Indonesia, Japan, Taiwan

Key characters

Head with frons yellow; occiput, ocellar triangle and arista brown; both vertical bristles on yellow ground; antenna yellow with third antennal segment rounded; mesonotum shiny black; scutellum  yellow; legs with coxae and femora yellow, tibiae and tarsi brown. Wing length 1.2 mm in male, 1.6 mm in female. Wing with costa extending to M vein. Abdominal tergites brown. Male genitalia:  phallus with characteristic large process on mesophallus, endophallus with sclerotised tubes narrowed (Malipatil et al. 2004). Pupation is external; posterior spiracles of puparium each with 3 bulbs (Sasakawa 1994).

External morphology very similar to L. trifolii and L. katoi. Identification requires examination of male genitalia. Detailed descriptions of external morphology, host plants and both male and female terminalia were given by Shiao et al. (1991).


The larva of Liriomyza yasumatsui forms a linear (ophionome) leaf mine (Sasakawa 1994; Shiao et al.1991).



Malipatil MB, Ridland PM, Rauf A, Watung J & Kandowangko D (2004) New records of Liriomyza Mik (Agromyzidae: Diptera) leafminers from Indonesia. Formosan Entomologist 24: 287-292. pdf

Sasakawa M (1972). Formosan Agromyzidae (Diptera). Scientific Report of the Kyoto Prefectural University 24: 43-82.

Sasakawa M (1994). Notes on the Japanese Agromyzidae (Diptera), 3. Liriomyza-miners on Artemisia spp. (Asteraceae). Japanese Journal of Entomology 62: 55-64. abstract and link to full text

Shiao SF, Lin FJ & Lu WJ (1991). Redescription of four Liriomyza species (Diptera: Agromyzidae) from Taiwan. Chinese Journal of Entomology 11: 65-74. pdf

WWW Resources

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