Australian Journal of Entomology (2004) 43, 101-113

Zvi Mendel, Alexey Protasov, Nicole Fisher and John La Salle (2004)
Taxonomy and biology of Leptocybe invasa gen. and sp. n. (Hymenoptera: Eulophidae), an invasive gall inducer on Eucalyptus
Australian Journal of Entomology 43 (2), 101-113
Abstract: Leptocybe invasa Fisher and LaSalle, a new genus and species of Eulophidae, displays thelytokous reproduction, forming typical bump-shaped galls on the leaf midribs, petioles and stems of new growth of several Eucalyptus species. Presently, this wasp occurs in large areas in the Middle East, the Mediterranean and Africa, and is a serious pest in young plantations. Heavy galling prevents further development of the infested growth. Leptocybe invasa is only known from females. Mean length of a gall containing a single wasp is 2.1 mm, leaves of intensively growing trees may carry over 50 galls per leaf. Mean development time from oviposition to emergence is 132.6 d in room temperature. In Israel the wasp produces two or three overlapping generations annually. Mean survival time for wasps fed with honey and water is 6.5 days. Ten species were found to be suitable hosts in Israel: E. botryoides, E. bridgesiana E. camaldulensis, E. globulus. E. gunii. E. grandis, E. robusta, E. saligna, E. tereticornis, and E. viminalis.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Alexey Protasov, John La Salle, Zvi Mendel

Research topic(s) for pests/diseases/weeds:
identification/taxonomy
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Leptocybe invasa	Eucalypt (Eucalyptus)	Israel