Spectral preferences of Lycorma delicatula (Hemiptera: Fulgoridae). Issue 2 (20th March 2013)

• Record Type: Journal Article
• Authors: Jang, Yikweon; An, Hyon‐Gyong; Kim, Hyojoong; Kim, Kwang‐Ho
• Is Part Of: Entomological research. Volume 43:Issue 2(2013:Mar.)
• Page Start: 115
• Page End: 122
• Publication Date: 2013-03-20
• Subjects: Insects -- Korea -- Periodicals; Entomology -- Periodicals; 595.709519
• DOI: 10.1111/1748-5967.12012
• Languages: English
• ISSNs: 1738-2297

Abstract

<abstract abstract-type="main"> <title>Abstract</title> <p>Many insects prefer lights with certain spectral properties, and such preferences may be associated with behavioral contexts such as mating, host finding or dispersal. <italic>Lycorma delicatula</italic> (Hemiptera: Fulgoridae) is a newly invasive species in Korea and is spreading rapidly. It is diurnal and may rely on visual cues for orientation. We conducted a series of three phototaxis experiments to understand spectral preferences in <italic>L. delicatula</italic>: light/dark choice, UV/white light choice, and color preference experiments. Nymphs of the third and final stages as well as adults were used for these experiments. In the light/dark choice, the orientation of <italic>L. delicatula</italic> was bimodal between the white light and darkness, for all stages and both sexes. In a choice of UV (395–410 nm wavelengths) vs. white light, <italic>L. delicatula</italic> of both sexes and all stages preferred the UV light. In the color preference experiment where insects had a choice of four colors in a circular arena, <italic>L. delicatula</italic> stayed significantly longer in the blue light than in white, yellow or green lights. Overall, nymphs and adults of <italic>L. delicatula</italic> oriented toward lights with shorter wavelengths, and this orientation was consistent throughout all stages, regardless of sex. It is necessary to investigate the behavioral contexts under which <italic>L. delicatula</italic> prefers the UV and blue lights.</p> </abstract>