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Oviposition Behavior and Egg Parasitoids of Sophonia rufofascia (Homoptera: Cicadellidae) in Hawaii Volcanoes National Park

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Title:Oviposition Behavior and Egg Parasitoids of Sophonia rufofascia (Homoptera: Cicadellidae) in Hawaii Volcanoes National Park
Authors:Yang, Pingjun
Follett, Peter A.
Jones, Vincent P.
Foote, David
Keywords:Dodonaea viscosa
Hawaii Volcanoes National Park
host plants
Ilex anomala
show 10 moreinsect pests
introduced species
Metrosideros polymorpha
Myrica faya
new host records
oviposition sites
Santalum paniculatum
Sophonia rufofascia
Vaccinium calycinum
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Date Issued:May 2000
Publisher:Hawaiian Entomological Society
Citation:Yang P, Follett PA, Jones VP, Foote D. 2000. Oviposition behavior and egg parasitoids of Sophonia rufofascia (Homoptera: Cicadellidae) in Hawaii Volcanoes National Park. Proc Hawaiian Entomol Soc 34:115–119.
Abstract:Oviposition behavior of Sophonia rufofascia, a polyphagous leafhopper recently introduced to the Hawaiian Islands, was studied on 6 common plant hosts in Hawaii Volcanoes National Park. The average number of eggs per leaf was approximately 1 in ’a’ali’i (Dodonea viscosa) and firetree (Myrica faya), and closer to 2 in Hawaiian holly (Ilex anomala), ’ohi’a lehua (Metrosideros polymorpha), sandalwood (Santalum paniculatum) and ’ohelo (Vaccinium calycimum). Over all plant species there was a weak positive correlation between leaf size and the number of eggs. All oviposition scars were in the midvein of ’a’ali’i, firetree, ’ohi’a lehua, and ’ohelo, but
in holly and sandalwood oviposition also occurred away from the midvein. In holly,
the proportion of eggs laid away from the midvein was positively correlated with leaf
thickness. Variation among host plants also existed for egg position relative to the
basal, middle, and apical third of the leaf, but in all species the middle third of the leaf was the most common oviposition site. S. rufofascia eggs in the park are attacked
principally by two endemic mymarids in the genus Polynema; this represents a host
shift or host range expansion for these native wasps.
Pages/Duration:6 pages
Appears in Collections: Volume 34 - May 2000 : Hawaiian Entomological Society

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