Acta Arachnologica

Araneus mayumiae (Araneae: Araneidae) is newly recorded as a prey of Eopompilus internalis (Hymenoptera: Pompilidae). In the laboratory, the spider was alive in approximately two months after being stung by the wasp.

Takeo Yamauchi

Natsuki Hirakizawa

Yuki G. Baba

A new prey record of &lt;I&gt;Eopompilus internalis&lt;/I&gt; (Hymenoptera: Pompilidae), with the observation of its temporarily paralyzed prey spider

一种新的&lt;I&gt;Eopompilus internalis&lt;/I&gt;（膜翅目：蛛蜂科）捕食记录，及其暂时麻痹的猎物蜘蛛的观察

Sphecotypus taprobanicus Simon 1897 is redescribed on the basis of the holotype female. Although the specimen is at a subadult stage, the shape of the carapace distinguishes S. taprobanicus from other Asian Sphecotypus species.

Takeshi Yamasaki

Christine Rollard

Redescription of &lt;I&gt;Sphecotypus taprobanicus&lt;/I&gt; Simon 1897 (Araneae: Corinnidae)

重新描述Sphecotypus taprobanicus Simon 1897（蜘蛛目：Corinnidae科）

A new species from the spider genus Philoponella Mello-Leitão 1917 – Philoponella rostralis n. sp. (♂♀) is diagnosed and described from the Kottapara Hills, Western Ghats, Kerala, India. A detailed description of its morphology, diagnostic features, photographs and the depictions of the copulatory organs of both sexes are given.

Kongarampilly Rajendran Shilpa

Ambalaparambil Vasu Sudhikumar

A new spider species of the genus &lt;I&gt;Philoponella&lt;/I&gt; Mello-Leitão 1917 (Araneae: Uloboridae) from Western Ghats of India

印度西高止山脉新发现的Philoponella Mello-Leitão 1917属蜘蛛新种（蜘蛛目：圆蛛科）

Three new species of Pseudopoda, P. tatsumii n. sp. (♂♀), P. kenmun n. sp. (♂♀), and P. tokunoshimana n. sp. (♂♀), are described from Amami-oshima Is. and Tokunoshima Is., Japan, and a synopsis of Japanese species of the genus is provided. Four of the Japanese species cannot be distinguished based solely on general appearance, although can be separated by male palpal morphology, particularly the embolus. The epigynes are somewhat variable and insufficiently distinct to enable reliable species discrimination. The three species on Amami-oshima Island are parapatric, with unexpectedly narrow distribution ranges.

Akio Tanikawa

Japanese spiders of the genus &lt;I&gt;Pseudopoda&lt;/I&gt; (Araneae: Sparassidae)

日本伪足蛛属（蜘蛛目：花蛛科）

A new pill millipede species, Hyleoglomeris magy sp. nov., is described from Okinawa and adjacent islands, Ryukyu Archipelago, Japan. The new species is mainly characterized by its large body (maximum length: 12.1mm) and general light yellowish-brown coloration marked with pairs of blackish spots. The general appearance of the new species resembles that of Hyleoglomeris hongkhraiensis Golovatch & Panha 2015, but can be distinguished from this species by the number of striae on the thoracic shield (typically 8–10, with 3 or 4 crossing the dorsum, vs 7 or 8 in total with 4 or 5 crossing the dorsum) and the shape of the telopod (femur strongly bulged distally, vs not bulged). An identification key to all five species of Hyleoglomeris known to occur in the Ryukyu Archipelago is also provided.

Nobuyuki Nakama

Yasuyuki Nakamura

Haruki Tatsuta

Zoltán Korsós

A new pill millipede species of the genus &lt;I&gt;Hyleoglomeris&lt;/I&gt; Verhoeff 1910 (Glomerida: Glomeridae) from the Ryukyu Archipelago, Japan

日本琉球群岛新发现的Hyleoglomeris Verhoeff 1910属（Glomerida目：Glomeridae科）一种新药丸马陆

Faunal investigation of freshwater halacarid mites was carried out on Ishigaki Island in the southern part of the Ryukyus in Japan. The research was executed in five small streams on the island in 2022 and 2023. During the survey, two halacarid species, Limnohalacarus cultellatus and Lobohalacarus weberi were obtained only from a mountain stream rising from Mt. Omoto. The genus Limnohalacarus was reported for the first time from Japan in this study. Based on the present report of the two halacarid species on Ishigaki Island and the former halacarid record from a spring on Miyako Island, the formation history of the distribution of freshwater halacarids in the Southern Ryukyus was presumed. The freshwater halacarids would disperse from the Eurasian continent to these islands when these islands were a part of the western margin of the continent. Afterward, most of the Ryukyus was inundated by the sea. However, some highland areas have probably escaped from sinking into the sea until the present time. Consequently, it is presumed that the current local distribution of freshwater halacarids on Ishigaki and Miyako Islands has been maintained by the relatively highland area that became a refugium.

Hiroshi Abé

First Japanese record of brood-caring halacarid mites &lt;i&gt;Limnohalacarus&lt;/i&gt; (Acari: Halacaridae), with notes on the biogeographical implications

日本首次记录的育雏水螨Limnohalacarus（蜱螨目：水螨科）及其生物地理学意义

This study presents the first-ever description of the male of Notiocoelotes parvitriangulus Liu, Li & Pham 2010, found in caves in northern Vietnam. The species is exclusively located within cave environments.

Quang Duy Hoang

Ha Minh Thi Tran

Thuy Bich Vu

Thao Thanh Thi Tran

First description of male of the cave-dwelling species &lt;i&gt;Notiocoelotes parvitriangulus&lt;/i&gt; (Araneae: Agelenidae) from northern Vietnam

首次描述越南北部洞穴物种&lt;i&gt;Notiocoelotes parvitriangulus&lt;/i&gt;（蜘蛛目：隙蛛科）的雄性个体

Three species of minute-sized spiders were discovered for the first time in Korea: Theridiosoma fulvum (Theridiosomatidae), Microdipoena ogatai and M. shenyang (Mysmenidae). Previously, T. fulvum and M. ogatai were known to be distributed only in Japan, while M. shenyang was known only in Northeast China. All former records of Microdipoena jobi from Korea are misidentifications of M. shenyang. Detailed descriptions and photographs of the three species are provided.

Jun-Gi Lee

Yuya Suzuki

Jun-Ho Lee

Chang-Hwan Bae

Sam-Kyu Kim

Three newly recorded spider species of &lt;i&gt;Theridiosoma&lt;/i&gt; and &lt;i&gt;Microdipoena&lt;/i&gt; (Araneae: Theridiosomatidae and Mysmenidae) from Korea

韩国新记录的三种蜘蛛：&lt;i&gt;Theridiosoma&lt;/i&gt; 和 &lt;i&gt;Microdipoena&lt;/i&gt;（蜘蛛目：Theridiosomatidae 和 Mysmenidae）

Both sexes of a new species of Tmarus Simon 1875, Tmarus okinawanus n. sp., are described from Okinawajima Island, southwest Japan. Additionally, the female of T. makiharai Ono 1988 is described for the first time.

A survey of &lt;i&gt;Tmarus&lt;/i&gt; (Araneae: Thomisidae) from Central Ryukyu, Japan, with the description of a new species and the first description of the female of &lt;i&gt;T. makiharai&lt;/i&gt;

日本中央琉球群岛蟹蛛属（蜘蛛目：蟹蛛科）调查，描述一新种及首度描述雌性马氏蟹蛛

A new species of the genus Cheiracanthium C. L. Koch 1839, Cheiracanthium minutum sp. nov. (♂♀), is described on the basis of specimens collected from the Nansei Islands, Japan. The photos of the habitus, copulatory organs and illustrations are provided. In addition, the DNA barcode sequence of this species is also provided.

A new species of the genus &lt;i&gt;Cheiracanthium&lt;/i&gt; (Araneae: Cheiracanthiidae) from the Nansei Islands, Japan

日本南西群岛产蟹蛛科新种Cheiracanthium (蜘蛛目: 蟹蛛科)

ISSN	0001-5202, 1880-7852
h-index	17

Publication Information	Publisher: Arachnological Society of Japan，Publishing cycle: ，Journal Type: journal，Open Access Journals: No
Basic data	Year of publication: 1980，Proportion of original research papers: 0.00%，Self Citation Rate:N.A.， Gold OA Rate: 0.00%

Acta Arachnologica

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A new prey record of <I>Eopompilus internalis</I> (Hymenoptera: Pompilidae), with the observation of its temporarily paralyzed prey spider

Redescription of <I>Sphecotypus taprobanicus</I> Simon 1897 (Araneae: Corinnidae)

A new spider species of the genus <I>Philoponella</I> Mello-Leitão 1917 (Araneae: Uloboridae) from Western Ghats of India

Japanese spiders of the genus <I>Pseudopoda</I> (Araneae: Sparassidae)

A new pill millipede species of the genus <I>Hyleoglomeris</I> Verhoeff 1910 (Glomerida: Glomeridae) from the Ryukyu Archipelago, Japan

First Japanese record of brood-caring halacarid mites <i>Limnohalacarus</i> (Acari: Halacaridae), with notes on the biogeographical implications

First description of male of the cave-dwelling species <i>Notiocoelotes parvitriangulus</i> (Araneae: Agelenidae) from northern Vietnam

Three newly recorded spider species of <i>Theridiosoma</i> and <i>Microdipoena</i> (Araneae: Theridiosomatidae and Mysmenidae) from Korea

A survey of <i>Tmarus</i> (Araneae: Thomisidae) from Central Ryukyu, Japan, with the description of a new species and the first description of the female of <i>T. makiharai</i>

A new species of the genus <i>Cheiracanthium</i> (Araneae: Cheiracanthiidae) from the Nansei Islands, Japan