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The cavernicolous fauna of Hawaiian lava tubes, Part VII. Emesinae or thread-legged bugs (Heteroptera: Redvuiidae)

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Title: The cavernicolous fauna of Hawaiian lava tubes, Part VII. Emesinae or thread-legged bugs (Heteroptera: Redvuiidae)
Authors: Gagne, Wayne C.
Howarth, Francis G.
Keywords: Nesidiolestes
Lava tubes
LC Subject Headings: Cave animals -- Hawaii -- Hawaii Island.
Thread-legged bugs.
Issue Date: Jul 1974
Publisher: Island Ecosystems IRP, U.S. International Biological Program
Citation: Gagne WC, Howarth, FG. 1974. The cavernicolous fauna of Hawaiian lava tubes, Part VII. Emesinae or thread-legged bugs (Heteroptera: Redvuiidae). Honolulu (HI): Island Ecosystems IRP, U.S. International Biological Program. International Biological Program Technical Report, 43. 18 pages.
Series/Report no.: International Biological Program Technical Report
Abstract: This paper describes the world's second troglobitic heteropteran, Nesidiolestes sp., and presents notes on its biology. The species is restricted to the dark zones of high altitude lava tubes on Hawaii Island. Body pigmentation is lacking and the eyes are strongly reduced. This discovery again demonstrates that adaptive radiation of the epigean fauna into cave situations has occurred in Hawaii. Rather than exhibiting relictual characteristics, the species seems recently derived from a surface-dwelling (epigean) ancestor and most closely resembles the extant N. selium Kirkaldy of the same island. Epigean species of Nesidiolestes Kirkaldy have a predisposition for the cave habitat in that they are cryptic, dark-seeking, apparently nocturnal, slow-moving insects frequenting the mossy undersides of fallen logs and ferns in the rain forest. The existence of N. sp. was actually predicted on the basis of the apparently preadaptive habits mentioned. This brings the number of described troglobitic arthropods in Hawaiian lava tubes to eight species.
Description: Reports were scanned in black and white at a resolution of 600 dots per inch and were converted to text using Adobe Paper Capture Plug-in.
Sponsor: We are especially indebted to our artist, Alan Hart, Department of Entomology, Bishop Museum. His fine work speaks for itself. William Mull, Research Associate in Entomology, Bishop Museum, provided the photograph. Dr. P. Wygodzinsky, Entomology Department, American Museum of Natural History, critically reviewed the manuscript. Dr. G. A. Samuelson, Department of Entomology, Bishop Museum, kindly examined the type of N. selium at the British Museum (Natural History) during his recent visit there. We wish to thank Nancy Howarth and Linda Miyasaki for their typing of the various drafts of this manuscript.
Pages/Duration: 18 pages
Rights: CC0 1.0 Universal
Appears in Collections:International Biological Program Technical Reports (1970-1975)

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