Formosan Entomologist (2006) 26, 399-406

Lekhnath Kafle, Po-Yung Lai, Yin-Fu Chang and Jeng-Tze Yang (2006)
Host searching behavior of Ganaspidium utilis (Beardsley) (Hymenoptera: Eucoilidae) on Liriomyza trifolii (Burgess) (Diptera: Agromyzidae)
Formosan Entomologist 26 (4), 399-406
Abstract: Host searching behavior of Ganaspidium utilis (Beardsley) (Hymenoptera: Eucoilidae) was observed when G. utilis females searched and oviposited on the late 2nd or early 3rd instar of Liriomyza trifolii (Burgess) (Diptera: Agromyzidae) larvae in the laboratory. It was observed that G. utilis females used mines made by their hosts as trails to search for their hosts. A G. utilis female was able to discriminate whether or not mines had previously been searched. It was observed that G. utilis females followed a series of fixed action patterns comprised of walking to find a host, holding the antennae upward when a host was accepted, ovipositor probing to determine the suitability of the host and ovipositor penetrating as culmination of the host searching behavior.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Po-Yung Lai

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
Ganaspidium utilis (parasitoid)	Liriomyza trifolii		Taiwan