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Sexava Coconut treehopper

Scientific Name
Segestidea gracilis gracilis
Scientific Author
(Willemse, 1957)
Taxonomy
(Orthoptera: Tettigoniidae: Mecopodinae: Sexavaini)
Status
Exotic species - absent from Australia
Reliability
High
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Diagnostic Images

Lateral Image - Female
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Caption
Papua New Guinea, New Ireland Province, 21 June 2007, C. F. Dewhurst, ex oil palm
Source
Sarah McCaffrey Museum Victoria
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Diagnostic Images (17)
Diagnostic Notes
The principal pests of oil palm in PNG are a group of insect species from the Tettigoniidae family (Orthoptera), known collectively as sexava. Three species of sexava are pests of oil palm in PNG, Segestes decoratus, Segestidea defoliaria defoliaria, Segestidea defoliaria gracilis and Segestidea novaeguineae. These insects cause damage by feeding on oil palm fronds and defoliation levels can be very severe where high populations occur. Severe defoliation causes reductions in photosynthesis resulting in yield loss from lower fruit production.
More Information
Specimen Contact
Museum Victoria
Author
Ken Walker
Created
11/04/2011 11:11 AEST
Last Updated
13/08/2012 12:27 AEST
Citation
Ken Walker (2011) Sexava Coconut treehopper (Segestidea gracilis gracilis ) Updated on 8/13/2012 12:27:32 PM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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