{"title":"The first report of matriphagy in Stegodyphus pacificus Pocock 1900","authors":"R. Tripathi, A. Jangid, M. Siliwal, S. Dutta","doi":"10.2476/asjaa.69.17","DOIUrl":"https://doi.org/10.2476/asjaa.69.17","url":null,"abstract":"","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43246189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
― The locomotor activity rhythm of Thereuonema tuberculata was investigated under laboratory conditions. Under a light-dark cycle, locomotion was initiated ca. 1 hour after the dark phase began and the peak activity period occurred in the first half of the dark phase. The locomotor activity persisted in continuous darkness and continuous light and was well-entrained to a skeleton photoperiod. Thus, the locomotor activity is controlled by an endogenous pacemaker and is entrained by the transitions between light and dark phases. .
{"title":"Circadian rhythm in locomotor activity of the common house centipede, Thereuonema tuberculata (Scutigeromorha: Scutigeridae)","authors":"Kazuhiro Tanaka, Y. Watari","doi":"10.2476/asjaa.69.31","DOIUrl":"https://doi.org/10.2476/asjaa.69.31","url":null,"abstract":"― The locomotor activity rhythm of Thereuonema tuberculata was investigated under laboratory conditions. Under a light-dark cycle, locomotion was initiated ca. 1 hour after the dark phase began and the peak activity period occurred in the first half of the dark phase. The locomotor activity persisted in continuous darkness and continuous light and was well-entrained to a skeleton photoperiod. Thus, the locomotor activity is controlled by an endogenous pacemaker and is entrained by the transitions between light and dark phases. .","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2476/asjaa.69.31","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43639267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
At present, only one Stertinius species, S. kumadai Logunov, Ikeda & Ono 1997, is known from Japan. In this paper, a new species, S. ryukyuensis sp. nov., is described and compared with S. kumadai, which is redescribed. Despite similarities in general appearance, the two species can be separated based on the morphology of retrolateral tibial apophysis and male cheliceral teeth, as well as the position of large spermathecal chamber.
目前在日本只发现了一种Stertinius, S. kumadai Logunov, Ikeda & Ono 1997。本文描述了一种新种S. ryukyuensis sp. nov.，并与重新描述的S. kumadai进行了比较。尽管总体外观相似，但根据胫骨后突和雄性螯齿的形态以及大精囊室的位置，可以将这两个物种分开。
{"title":"Japanese spiders of the genus Stertinius (Araneae: Salticidae)","authors":"Tatsumi Suguro","doi":"10.2476/asjaa.69.55","DOIUrl":"https://doi.org/10.2476/asjaa.69.55","url":null,"abstract":"At present, only one Stertinius species, S. kumadai Logunov, Ikeda & Ono 1997, is known from Japan. In this paper, a new species, S. ryukyuensis sp. nov., is described and compared with S. kumadai, which is redescribed. Despite similarities in general appearance, the two species can be separated based on the morphology of retrolateral tibial apophysis and male cheliceral teeth, as well as the position of large spermathecal chamber.","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43545374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Takeshi Yamasaki, Y. Hashimoto, T. Endo, F. Hyodo, Itioka Takao, P. Meleng
Agorius hyodoi sp. nov. (Araneae: Salticidae) is described here on the basis of male and female specimens collected from the Lambir Hills National Park, Sarawak, Borneo. The conspecificity of the male and female was confirmed by DNA barcoding.
{"title":"A new species of the genus Agorius (Araneae: Salticidae) from Sarawak, Borneo","authors":"Takeshi Yamasaki, Y. Hashimoto, T. Endo, F. Hyodo, Itioka Takao, P. Meleng","doi":"10.2476/asjaa.69.37","DOIUrl":"https://doi.org/10.2476/asjaa.69.37","url":null,"abstract":"Agorius hyodoi sp. nov. (Araneae: Salticidae) is described here on the basis of male and female specimens collected from the Lambir Hills National Park, Sarawak, Borneo. The conspecificity of the male and female was confirmed by DNA barcoding.","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43863554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The jumping spider genus Schenkelia Lessert 1927 is recorded from India with the discovery of the species Schenkelia aurantia Kanesharatnam & Benjamin 2018. Digital images of the general habitus and male palp are provided. The distributional records of the species are mapped.
跳跃蜘蛛属Schenkelia Lessert 1927被记录在印度，物种Schenkelia aurantia Kanesharatnam & Benjamin 2018被发现。提供了一般习性和雄性触须的数字图像。绘制了该物种的分布记录。
{"title":"First record of the genus Schenkelia Lessert 1927 (Araneae: Salticidae) from India","authors":"J. Caleb, Shelley Acharya","doi":"10.2476/asjaa.68.73","DOIUrl":"https://doi.org/10.2476/asjaa.68.73","url":null,"abstract":"The jumping spider genus Schenkelia Lessert 1927 is recorded from India with the discovery of the species Schenkelia aurantia Kanesharatnam & Benjamin 2018. Digital images of the general habitus and male palp are provided. The distributional records of the species are mapped.","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41792042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Parasitism by the ichneumonid ectoparasitoid, Brachyzapus nikkoensis, on the agelenid spider, Allagelena opulenta is recorded for the second time with the first voucher specimen. The attacked host was an adult in contrast to the exclusive utilization of juveniles of the main host, Agelena silvatica. All published records of parasitism upon Agelena silvatica are from spring to early summer, and therefore this finding of parasitism in the end of September, would be consistent with B. nikkoensis shifting its hosts in accordance with their body size, seasonal prevalence and their availability, as previously suggested.
{"title":"The second record of Allagelena opulenta (Araneae, Agelenidae) parasitized by the spider-ectoparasitoid, Brachyzapus nikkoensis (Hymenoptera, Ichneumonidae)","authors":"K. Takasuka","doi":"10.2476/asjaa.68.77","DOIUrl":"https://doi.org/10.2476/asjaa.68.77","url":null,"abstract":"Parasitism by the ichneumonid ectoparasitoid, Brachyzapus nikkoensis, on the agelenid spider, Allagelena opulenta is recorded for the second time with the first voucher specimen. The attacked host was an adult in contrast to the exclusive utilization of juveniles of the main host, Agelena silvatica. All published records of parasitism upon Agelena silvatica are from spring to early summer, and therefore this finding of parasitism in the end of September, would be consistent with B. nikkoensis shifting its hosts in accordance with their body size, seasonal prevalence and their availability, as previously suggested.","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45768282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
― A new species of the genus Wendilgarda is described as Wendilgarda ruficeps sp. nov. from Japan. Both sexes of this species possess a bicolor body: prosoma reddish orange and opithosoma dark grey, which is useful for distinction from other congeners. The male palpal morphology of this species is similar to that of W. sinensis and W. muji , but can clearly be distinguished by the serrated edge on the posterior side of the median apophysis. The female epigyne of this species is similar to that of W. sinensis ; however, it shows the smaller invagination on the posterior margin of the epigyne and the wider scape.
{"title":"A new species of the genus Wendilgarda (Araneae: Theridiosomatidae) from Japan","authors":"Yuya Suzuki","doi":"10.2476/asjaa.68.59","DOIUrl":"https://doi.org/10.2476/asjaa.68.59","url":null,"abstract":"― A new species of the genus Wendilgarda is described as Wendilgarda ruficeps sp. nov. from Japan. Both sexes of this species possess a bicolor body: prosoma reddish orange and opithosoma dark grey, which is useful for distinction from other congeners. The male palpal morphology of this species is similar to that of W. sinensis and W. muji , but can clearly be distinguished by the serrated edge on the posterior side of the median apophysis. The female epigyne of this species is similar to that of W. sinensis ; however, it shows the smaller invagination on the posterior margin of the epigyne and the wider scape.","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41998483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The web of Phoroncidia altiventris (Araneae: Theridiidae), which had been unknown since its taxonomic description, was recently discovered and confirmed to form an orb-web structure. This result supports the thought that this species should be reassessed and placed in the family Araneidae.
{"title":"Discovery of the web of Phoroncidia altiventris (Araneae: Theridiidae) and implications for its taxonomic position","authors":"Yuya Suzuki, Tomoyuki Yokoi","doi":"10.2476/asjaa.68.31","DOIUrl":"https://doi.org/10.2476/asjaa.68.31","url":null,"abstract":"The web of Phoroncidia altiventris (Araneae: Theridiidae), which had been unknown since its taxonomic description, was recently discovered and confirmed to form an orb-web structure. This result supports the thought that this species should be reassessed and placed in the family Araneidae.","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46810110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Anepsion japonicum (Bösenberg & Strand 1906) is a junior synonym of A. maritatum (O.Pickard-Cambridge 1877)","authors":"A. Tanikawa, Takeshi Yamasaki","doi":"10.2476/asjaa.68.11","DOIUrl":"https://doi.org/10.2476/asjaa.68.11","url":null,"abstract":"Anepsion japonicum (Bösenberg & Strand 1906) is newly synonymized with A. maritatum (O.Pickard-Cambridge 1877) by examining the type specimens.","PeriodicalId":52544,"journal":{"name":"Acta Arachnologica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47084943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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