Formosan Entomologist (2001) 21, 89-97

Ching-Chin Chien and Shiu-Chih Ku (2001)
Instar preference of five species of parasitoids of Liriomyza trifolii (Hymenoptera: Eulophidae, Braconidae)
Formosan Entomologist 21 (2), 89-97
Abstract: Hemiptarsenus varicornis (Girault), Chrysocharis pentheus (Walker), Chrysonotomyia okazakii (Kamijo), Neochrysocharis formosa (Westwood), and Opius sp. are native parasitoids of Liriomyza trifolii (Burgess) in Taiwan. The mode of oviposition of the first four larval parasitoids is that of idiobiont species, while the larval-pupal parasitoid, Opius sp., is a koinobiont species. These parasitoids exhibit host-feeding except Opius sp. With parasitization or host-feeding, all five of these parasitoids have host instar preference, especially preferring to oviposit on third instars. But host selection behavior affects the ratio of idiobiont female progeny only.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Ching-Chin Chien

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Liriomyza trifolii		Taiwan
Closterocerus formosus (parasitoid)	Liriomyza trifolii		Taiwan
Chrysocharis pentheus (parasitoid)	Liriomyza trifolii		Taiwan
Hemiptarsenus varicornis (parasitoid)	Liriomyza trifolii		Taiwan
Closterocerus okazakii (parasitoid)	Liriomyza trifolii		Taiwan