Abstract
I investigated the stone leek leafminer, Liriomyza chinensis Kato (Diptera: Agromyzidae), and its hymenopterous parasitoids emerging from the leaves of Welsh onion collected in Kyoto Prefecture, Japan, from July to August 2002, from June to August 2003, and from May to June 2005. The parasitoids that emerged from L. chinensis larvae or pupae were Halticoptera circulus (Walker) (Pteromalidae), Pnigalio katonis (Ishii) (Eulophidae), Diglyphus isaea (Walker) (Eulophidae), Chrysocharis pentheus (Walker) (Eulophidae), Neochrysocharis formosa (Westwood) (Eulophidae), and Closterocerus trifasciatus Westwood (Eulophidae). The dominant parasitoid species in 2002 was D. isaea, and that in 2003 and 2005 was P. katonis.