- 著者
- Akio Tanikawa Takeshi Yamasaki Booppa Petcharad
- 出版者
- Arachnological Society of Japan
- 雑誌
- Acta Arachnologica (ISSN:00015202)
- 巻号頁・発行日
- vol.70, no.2, pp.87-101, 2021-12-27 (Released:2021-12-30)
- 被引用文献数
- 1
Araneus is a large genus containing many species with various features, and phylogenetic analysis has revealed it to be a polyphyletic group. It has been proposed that nine new genera should be established independently from Araneus. One example is a group that includes Araneus mitificus (Simon 1886) and Araneus praesignis (L. Koch 1872). In this study, we examined specimens from several species that are morphologically similar to them, and confirmed their close relationship by phylogenetic analysis using the data of five genes. All targeted species were united in a monophyletic clade, comprising two groups in detail. The epigynes and male palps of the species in these two groups were clearly distinguishable; therefore, we concluded that they should be recognized as two independent genera. Consequently, we describe two new genera, Aoaraneus n. gen. and Bijoaraneus n. gen. Additionally, previously identified Japanese Araneus mitificus specimens were reexamined and concluded to be misidentified. It is described as a new species under the name Bijoaraneus komachi n. sp. in this study.
- 著者
- Yuya Suzuki Booppa Petcharad Thanakorn Into Akio Tanikawa
- 出版者
- Arachnological Society of Japan
- 雑誌
- Acta Arachnologica (ISSN:00015202)
- 巻号頁・発行日
- vol.69, no.2, pp.75-76, 2020-12-20 (Released:2020-12-24)
- 参考文献数
- 18
In this short paper, we report the predation of an orb-weaving spider Neoscona sp. (Araneae: Araneidae) by a corinnid sac spider Corinnomma severum (Araneae: Corinnidae) from Thailand. To the best of our knowledge, this is the first report of predation of web-building spider by a spider of the genus Corinnomma observed in the field.
- 著者
- Akio Tanikawa Booppa Petcharad
- 出版者
- Arachnological Society of Japan
- 雑誌
- Acta Arachnologica (ISSN:00015202)
- 巻号頁・発行日
- vol.72, no.2, pp.119-127, 2023-12-10 (Released:2023-12-10)
The large orb-weaving spider genus Araneus consists of numerous species with highly variable morphologies and behaviors, and phylogenetic analyses have suggested that the genus is polyphyletic. Here, we investigated the specimens of Araneus viridiventris Yaginuma 1969, A. noegeatus (Thorell 1895), and an undescribed species. They were morphologically similar to each other but differed from the type species of Araneus. Following our molecular phylogenetic analysis using the sequencing data of five genes, we describe a new genus, Leviaraneus n. gen., which contains these species. They are small spiders with a broad, green abdomen. Moreover, we described the unknown species as a new species, Leviaraneus halabala n. sp. Additionally, Leviaraneus noegeatus n. comb. is newly recorded from Thailand, and its male is described for the first time.
- 著者
- Akio Tanikawa Booppa Petcharad
- 出版者
- Arachnological Society of Japan
- 雑誌
- Acta Arachnologica (ISSN:00015202)
- 巻号頁・発行日
- vol.64, no.1, pp.17-20, 2015-08-31 (Released:2015-12-02)
- 参考文献数
- 37
A new species of Cyrtophora is described on the basis of specimens collected from Trang Province, Thailand, under the name of Cyrtophora sextuberculata n. sp. This species can be distinguished from other congeners by the elongated abdomen having three pairs of tubercles. The shape of epigyne of this species resembles that of C. crassipes (Rainbow 1897), but the abdomen of the latter has only a pair of dorsal tubercles and bifurcated posterior end. The male of the latter species is still unknown.