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Acta Arachnologica Vol. 64(2015) No. 2

Fauna

On the spider fauna (Arachnida: Aranei) of the Altai Republic (Russia)

Alexander A. Fomichev

Released: January 02, 2016

p.63-70

A list of 96 spider species found in Altai is provided. 17 species are recorded for the Altai Republic for the first time. One of them, Zelotes helanshan Tang, Urita, Song & Zhao 1997, was found in Russia for the first time. Species new to Russia, two poorly known species, Bolyphantes punctulatus (Holm 1939) and Xysticus sjostedti Schenkel 1936, and one of species new to Altai, Araneus grossus (C. L. Koch 1844), are illustrated.

Ecology

Host insects infested with aquatic mites (Acari: Hydrachnidiae and Stygothrombiae) in Kanagawa and Shizuoka prefectures in Japan

Takuya Nagasawa, Hiroshi Abé

Released: January 02, 2016

p.71-73

Prostigmatid aquatic mites are known to temporarily live on the surface of aquatic insects in their life cycle. We collected imaginal aquatic insects by hand-sweeping and a light trap on mountain streams in Shizuoka and Kanagawa prefectures in Japan to clarify the parasitic nature of aquatic mites on them. During the survey, 16 genera in 13 families of Trichoptera, four genera in two families of Plecoptera, and three genera in two families of Diptera were recorded as host insects of aquatic mite genera Protzia, Partnunia, Stygomomonia, and Lebertia in Hydrachnidiae and Stygothrombium in Stygothrombiae. Trichoptera was newly recorded as a host taxon of aquatic mites in Japan. The diversity of host insect taxa for Protzia was greater than that for the other four mite genera. The host-parasite correspondence between mite and host insect taxa was generally consistent with the results so far obtained.

Rearing method

Method for rearing the orb-web spider Cyclosa argenteoalba

Yusuke Shigemiya, Kensuke Nakata

Released: January 02, 2016

p.75-81

Rearing of animals from one generation to the next is important in many biological studies. In this study, we aimed to develop efficient methods for rearing multiple generations of orb-web spiders (Cyclosa argenteoalba), testing three methods. First, we examined isolated rearing with aphid supplied by hand. Second, we tested mass rearing. We also collected various insect species from the field using light trap and supplied them by hand. Both methods failed, perhaps because of the inappropriate aphid (Uroleucon formosanum) and insufficient quantity of prey supplied in the first and second tests, respectively. For the third method, we mass reared with abundant prey directly supplied from light traps into the terrariums located outside. This method successfully raised hatchlings to adults, and the eggs produced from these adults also matured. The development time of wintering and non-wintering cohorts was 150.2‐195.0 days and 24.0‐76.3 days, respectively.

Taxonomy

Descriptions of two new species of the Clubiona corticalis-group (Araneae: Clubionidae) from China

Meng Wang, Panlong Wu, Feng Zhang

Released: January 02, 2016

p.83-89

The present paper describes two new Clubiona corticalis-group spider species collected from Yunnan and Sichuan provinces of China: Clubiona pianmaensis sp. nov. (♀♂) and Clubiona cochleata sp. nov. (♀♂). Illustrations or photographs of somatic and genitalic morphology are provided.

A new species of the genus Icius (Araneae: Salticidae) from the Ogasawara Islands, Japan

Tatsumi Suguro, Hiroshi Nagano

Released: January 02, 2016

p.91-95

A new salticid species of the genus Icius is described as Icius rugosus, from Mukojima, Anijima and Hahajima Islands of the Ogasawara Islands, Japan. This species resembles the generic type I. hamatus (C. L. Koch 1846) but can be distinguished from the latter by genital morphologies in both sexes and male chelicera with ventral wrinkles. Additionally, I. daisetsuzanus Saito 1934 is newly synonymized with Sitticus ranieri (Peckham & Peckham 1909), as Matsuda (1997) pointed out first. As a result, Japanese species belonging to this genus is only the new species for the present.

A new jumping spider of the genus Cosmophasis Simon

John T. D. Caleb, R. Karthikeyani

Released: January 02, 2016

p.97-99

A new species of jumping spider, Cosmophasis undulata sp. nov., is described from Maharashtra, India. The new species differs from other known species of the genus by its unique abdominal pattern.

1 - 6 / 6 Articles.

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Volume And Issue List
Acta Arachnologica

Acta Arachnologica Vol. 64(2015) No. 2

Fauna

On the spider fauna (Arachnida: Aranei) of the Altai Republic (Russia)

Ecology

Host insects infested with aquatic mites (Acari: Hydrachnidiae and Stygothrombiae) in Kanagawa and Shizuoka prefectures in Japan

Rearing method

Method for rearing the orb-web spider Cyclosa argenteoalba

Taxonomy

Descriptions of two new species of the Clubiona corticalis-group (Araneae: Clubionidae) from China

A new species of the genus Icius (Araneae: Salticidae) from the Ogasawara Islands, Japan

A new jumping spider of the genus Cosmophasis Simon

System Maintenance

Announcement From J-STAGE

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Volume And Issue List Acta Arachnologica

Acta Arachnologica Vol. 64(2015) No. 2

Fauna

On the spider fauna (Arachnida: Aranei) of the Altai Republic (Russia)

Ecology

Host insects infested with aquatic mites (Acari: Hydrachnidiae and Stygothrombiae) in Kanagawa and Shizuoka prefectures in Japan

Rearing method

Method for rearing the orb-web spider Cyclosa argenteoalba

Taxonomy

Descriptions of two new species of the Clubiona corticalis-group (Araneae: Clubionidae) from China

A new species of the genus Icius (Araneae: Salticidae) from the Ogasawara Islands, Japan

A new jumping spider of the genus Cosmophasis Simon

System Maintenance

Announcement From J-STAGE

Journal Tools

Share this Title

Volume And Issue List
Acta Arachnologica