All issues
Volume 61 (2012)
- Issue 2 Pages 51-
- Issue 1 Pages 1-
Volume 61, Issue 1
Displaying 1-8 of 8 articles from this issue
- |<
- <
- 1
- >
- >|
Taxonomy
-
Tatsumi Suguro, Kensuke Yahata2012 Volume 61 Issue 1 Pages 1-4
Published: September 30, 2012
Released on J-STAGE: September 30, 2012
JOURNAL FREE ACCESSA new salticid species is described from Japan under the name of Evarcha selenaria. Males of the species are easily distinguishable from those of other Evarcha species by their genital morphologies. Females are barely distinguishable by interior genital morphologies.View full abstractDownload PDF (1119K) -
Naoki Koike2012 Volume 61 Issue 1 Pages 5-6
Published: September 30, 2012
Released on J-STAGE: September 30, 2012
JOURNAL FREE ACCESSThe male of Cybaeus zenifukiensis (Komatsu 1968) is described and illustrated for the first time. Intraspecific variation is also noted using topotypic specimens.View full abstractDownload PDF (170K) -
Takeshi Yamasaki, Jin-Nan Huang2012 Volume 61 Issue 1 Pages 7-10
Published: September 30, 2012
Released on J-STAGE: September 30, 2012
JOURNAL FREE ACCESSA new ant-like spider species, Myrmarachne latithoracica, is described using the specimens from the Central Ryukyus and Taiwan.View full abstractDownload PDF (802K) -
Akio Tanikawa2012 Volume 61 Issue 1 Pages 11-17
Published: September 30, 2012
Released on J-STAGE: September 30, 2012
JOURNAL FREE ACCESSDolomedes senilis Simon 1880 is newly recorded from Japan using the specimens collected from Hokkaido. The species is easily separated from other Japanese congeners by its unique appearance. One new species Dolomedes pegasus is also described using specimens collected from Tohoku district, northern part of Honshu, Japan. Dolomedes pegasus resembles D. sulfureus and D. angustivirgatus, but can be distinguished from them by shorter legs, barrel-shaped epigynum, shorter male palpal tibia and smaller tibial apophysis. The mt-COI partial sequence data of these species as well as D. zatsun are added to the previous data set and their phylogenetic placements among Japanese species are inferred. As a result, D. senilis and D. pegasus share the same clade with D. sulfureus, and D. zatsun shares the same clade with D. raptor.View full abstractDownload PDF (2487K) -
Hajime Yoshida2012 Volume 61 Issue 1 Pages 19-20
Published: September 30, 2012
Released on J-STAGE: September 30, 2012
JOURNAL FREE ACCESSA new species of the family Theridiidae is described from Mt. Merapi, Java, Indonesia, under the name of Yunohamella takasukai.View full abstractDownload PDF (371K) -
Junfang Hu, Feng Zhang2012 Volume 61 Issue 1 Pages 21-25
Published: September 30, 2012
Released on J-STAGE: September 30, 2012
JOURNAL FREE ACCESSLagynochthonius microdentatus sp. nov. is described and figured from Yunnan Province, China.View full abstractDownload PDF (995K) -
Tatsumi Suguro2012 Volume 61 Issue 1 Pages 27-30
Published: September 30, 2012
Released on J-STAGE: September 30, 2012
JOURNAL FREE ACCESSA salticid spider species, Thiania suboppressa Strand 1907 is newly recorded from Japan. The genus Thiania is new to the Japanese fauna. This species is easily distinguishable from the other Japanese salticid spiders by having: flattened body with lustrous markings; male palpal bulb with a circular plate forming the base of embolus; epigynum with two large depressions divided by median ridge.View full abstractDownload PDF (667K)
Ecology
-
Hongshu Pei, Koji Nakamura2012 Volume 61 Issue 1 Pages 31-39
Published: September 30, 2012
Released on J-STAGE: September 30, 2012
JOURNAL FREE ACCESSThe family and species make up of the spider assemblage was studied in terraced paddies located in a small valley (1 ha) in Kanazawa University's “Satoyama area” (74 ha) in the suburbs of Kanazawa City, Ishikawa Prefecture, Japan. The paddies, which are surrounded with deciduous secondary forests, were abandoned in 1984, but have been restored step by step since 2002. Spider samples were taken from the rice plants in the paddies bimonthly in 2009 (July - September) and 2010 (June - October) with two different methods (the pooter and vacuum methods). A total of 12,229 individuals (adults and nymphs), representing in 58 species belonging to 16 families, were collected during the study period. Tetragnathidae and Lycosidae were among the most dominant families, and Tetragnatha maxillosa (Tetragnathidae) was the most abundant species in the samples. Comparing with the samples collected in the preceding study from 2004 to 2006, the proportion of species which are commonly found in paddy fields managed employing common agricultural practices increased in this study.View full abstractDownload PDF (1407K)
- |<
- <
- 1
- >
- >|