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Volume 35 (1986 - 198･･･
- Issue 2 Pages 41-
- Issue 1 Pages 1-
Volume 35, Issue 2
Displaying 1-5 of 5 articles from this issue
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Christa L. DEELEMAN-REINHOLD1987 Volume 35 Issue 2 Pages 41-56
Published: 1987
Released on J-STAGE: March 29, 2007
JOURNAL FREE ACCESSThe male and female of Xyphinus hystrix SIMON, type species of the till now monotypic genus, are redescribed and for the first time figured from fresh material from Singapore, the type locality. Male and female of X. xelo n. sp. from West Malaysia and of X. xanthus n. sp., X. lemniscatus n. sp., X. abanghamidi n. sp., and X. gibber n. sp. and a male of X. montanus n. sp., all from Borneo, are described and figured. The genus is supposed to be related to Opopaea SIMON.View full abstractDownload PDF (1268K) -
Makoto YOSHIDA1987 Volume 35 Issue 2 Pages 57-75
Published: 1987
Released on J-STAGE: March 29, 2007
JOURNAL FREE ACCESSThe predatory behavior of Tetragnatha praedonia was studied. The prey consisted of mainly Diptera, especially midge flies, smaller than 3mm in body length. When capturing small prey, this species applied mainly “Seize-Pull out” strategy to them; that is, it plucked the web to locate the prey, ran and seized it in the jaws, pulled it out of the web, then carried to the hub and fed there. When given large prey more than 5mm, this species captured them by various strategies. It captured Lepidoptera mainly by “Bite-Wrap” strategy; that is, the prey was immobilized by bite, then was wrapped with silk. On the other hand, craneflies and damselflies were captured by three strategies, that is, “Seize-Pull out”, “Bite-Wrap” and “Wrap-Bite”. In “Wrap-Bite” strategy, the prey were attacked by wrapping, then bitten by the spider. But, the wrapping seemed to be of little use to immobilize the prey, because this species used the silk with less adhesiveness and did not used the swathes of silk.
It was verified that this species can use all the strategies which are used by the advanced araneids such as Argiope argentata. But, it captures mainly small prey by “Seize-Pull out” strategy, and does not use the swathes of silk for attack wrapping. So, the predatory behavior of this species should be situated in the new stage between the primitive stages and the advanced stages in the evolution of araneids' predatory behavior.View full abstractDownload PDF (1279K) -
Takahide KAMURA1987 Volume 35 Issue 2 Pages 77-88
Published: 1987
Released on J-STAGE: March 29, 2007
JOURNAL FREE ACCESSThe occurrence of the genus Drassyllus in Japan is confirmed. The male of Drassyllus sanmenensis PLATNICK et SONG is described for the first time. Two new species, D. sasakawai and D. yaginumai are described.View full abstractDownload PDF (1098K) -
James C. COKENDOLPHER1987 Volume 35 Issue 2 Pages 89-96
Published: 1987
Released on J-STAGE: March 29, 2007
JOURNAL FREE ACCESSThe rediscovery of the long lost holotype of Homolophus arcticus BANKS allowed the author to determine the identity of this species, the type for the genus. Euphalangium ROEWER is a junior synonym of Homolophus and all of its currently recognized species are listed in their respective new combinations. The status of species formerly included in Homolophus is briefly noted.View full abstractDownload PDF (3969K) -
Nobuo TSURUSAKI1987 Volume 35 Issue 2 Pages 97-107
Published: 1987
Released on J-STAGE: March 29, 2007
JOURNAL FREE ACCESSHomolophus arcticus BANKS and H. rishiri n. sp. are described from specimens collected from northern Hokkaido, Japan. This is the first record for the former species from Japan. Homolophus rishiri n. sp. is known from Is. Rishiri, off the northernmost part of Hokkaido, and is clearly distinguishable from H. arcticus by its small and darkly colored body and by the shape of the penis.View full abstractDownload PDF (1369K)
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