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Journal of the Speleological Society of Japan


Volume 12

Shun-Ichi UENO
A New Aphaenopsoid Thechine Beetle from South Korea
  A remarkable aphaenopsoid trechine beetle is described from a limestone cave of South Korea under the name of Gulaphaenops leptodiroides gen. et sp. nov. It belongs to the Trechoblemus series, and though strikingly modified in general appearance, is related to the genus Ishidatrechus of Central Japan.
Two New Subterranean Lathrobium (Coleoptera, Staphylinidae) from Japan
  Two new staphylinid beetles belonging to the genus Lathrobium are described from the upper hypogean zone of West Japan. One of them, L. daisenense,  was obtained on Mt. Daisen in Tottori Prefecture, and the other, L. tosanum, was found in Hongawa-mura of Kochi Prefecture.
Teruo IRIE
Nesticid Spiders (Araneae, Nesticidae) from Kyushu, Japan  
Nesticid spiders are recorded from Kyushu in Japan. As the result of my examination of 430 specimens of Nesticus, they are classified into ten species, of which eight are long-legged and two are short-legged. All the long-legged species belong to the akiyoshiensis type, i.e. the western Japanese type. One of them from Nagasaki Prefecture is new to science, and is described under the name of Nesticus yaginumai.
A NeW Spider, Coelotes acco (Araneae, Agelenidae) from an Abandoned Mine of the Boso Peninsula, Central Japan 
 A new agelenid spider is described from an abandoned mine adit on the Boso Peninsula, Central Japan, under the name of Coelotes acco. lt is closely allied to C. interunus, but can be readily recognized on the peculiarities of sexual organs in both the sexes.
Two New Species of Epicrius (Acarina, Epicriidae) Collected by Driven Traps in Japan
 Two new mites of the genus Epicrius belonging to the gamasid family Epicriidae are described from Japan under the names of E. omogoensis and E. parvituberculatus. They were collected by traps driven into the ground.
A New Neoparasitus and Hypoaspis queenslandicus (Acarina, Gamasida) Collected from the Subterranean Domain of Japan

 A new neoparasitid mite belonging to the family Rhodacaridae is described under the name of Neoparasitus punctatus. lt was collected by means of driven traps. Besides, Hypoaspis queenslandicus (WOMERSLEY), found in baited traps in a limestone cave, is newly recorded from Japan.

ESR Ages of Paleolithic Site of Douara Cave, Syria
 The ages of teeth, bones and eggshells which were excavated at a Paleolithic site, Douara Cave in Syria were determined using electron spin resonance (ESR). The teeth and bones were measured in their prototype without destructive pretreatment. The total dose of natural radiation was estimated using the ESR signal of CO33- radicals (g=2.0024, gll=1.9977) for teeth and bones and the ESR signal of radicals (g=2.0016, gll =1.9981) for eggshells. The ESR ages were obtained using the uranium contents in the samples determined by secondary ion mass spectrometry and in the surrounding soils reported earlier. The ESR ages are consistent with the fissiontrack age.
Atsushi FUJII
A Device of Fluorescent Dye Detection
 An introduction of the method of activated charcoal and standard potassium hydroxide-isopropyl alcohol mixture by ALEY and FLETCHER (1979) and a simple device of the detection are briefiy described from a practical view point. The extract solution may be often strongly dyed yellow, probably caused by some organic acids. As the result,it may be difficult to notice weak fluorescence by naked eyes. If it is so, add some grains of potassium hydroxide and stir up. Limpid alcohol solution with fluorescent dye is separated and the fluorescence can be easily recognized by naked eyes.