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Hamilton, J. (1889). Electric Light Captures. Psyche, 5(153), 149–150.
Nwosu, L. C., & Nwosu, L. K. (2012). Influence of Type of Electric Bright Light on the Attraction of the African Giant Water Bug, Lethocerus indicus (Hemiptera: Belostomatidae). Psyche: A Journal of Entomology, 2012, 1–4.
Abstract: This study investigated the influence of type of electric bright light (produced by fluorescent light tube and incandescent light bulb) on the attraction of the African giant water bug, Lethocerus indicus (Hemiptera: Belostomatidae). Four fluorescent light tubes of 15 watts each, producing white-coloured light and four incandescent light bulbs of 60 watts each, producing yellow-coloured light, but both producing the same amount of light, were varied and used for the experiments. Collections of bugs at experimental house were done at night between the hours of 8.30 pm and 12 mid-night on daily basis for a period of four months per experiment in the years 2008 and 2009. Lethocerus indicus whose presence in any environment has certain implications was the predominant belostomatid bug in the area. Use of incandescent light bulbs in 2009 significantly attracted more Lethocerus indicus 103 (74.6%) than use of fluorescent light tubes 35 (25.41%) in 2008 [
𝑃 < 0 . 0 5
𝑃 ( 𝑍 > 4 . 9 2 ) = 0 . 0 0 0 1
]. However, bugâs attraction to light source was not found sex dependent [
𝑃 > 0 . 0 5
𝑍 > 0 . 1 8 ) = 0 . 4 2 8 6
𝑍 > 0 . 2 8 = 0 . 3 8 9 7
]. Therefore, this study recommends the use of fluorescent light by households, campgrounds, and other recreational centres that are potentially exposed to the nuisance of the giant water bugs. Otherwise, incandescent light bulbs should be used when it is desired to attract the presence of these aquatic bugs either for food or scientific studies.
Oliveira, A. G., Stevani, C. V., Waldenmaier, H. E., Viviani, V., Emerson, J. M., Loros, J. J., et al. (2015). Circadian Control Sheds Light on Fungal Bioluminescence. Curr. Biol., 25(7), R283–R285.
Abstract: Bioluminescence, the creation and emission of light by organisms, affords insight into the lives of organisms doing it. Luminous living things are widespread and access diverse mechanisms to generate and control luminescence. Among the least studied bioluminescent organisms are phylogenetically rare fungiâonly 71 species, all within the ∼9,000 fungi of the temperate and tropical Agaricales orderâare reported from among ∼100,000 described fungal species. All require oxygen and energy (NADH or NADPH) for bioluminescence and are reported to emit green light (λmax 530 nm) continuously, implying a metabolic function for bioluminescence, perhaps as a byproduct of oxidative metabolism in lignin degradation. Here, however, we report that bioluminescence from the mycelium of Neonothopanus gardneri is controlled by a temperature-compensated circadian clock, the result of cycles in content/activity of the luciferase, reductase, and luciferin that comprise the luminescent system. Because regulation implies an adaptive function for bioluminescence, a controversial question for more than two millennia, we examined interactions between luminescent fungi and insects. Prosthetic acrylic resin âmushrooms,â internally illuminated by a green LED emitting light similar to the bioluminescence, attract staphilinid rove beetles (coleopterans), as well as hemipterans (true bugs), dipterans (flies), and hymenopterans (wasps and ants), at numbers far greater than dark control traps. Thus, circadian control may optimize energy use for when bioluminescence is most visible, attracting insects that can in turn help in spore dispersal, thereby benefitting fungi growing under the forest canopy, where wind flow is greatly reduced.