Rahsen Kaya

• Dr.
• Bursa Uludağ Üni̇versi̇tesi̇

Spiders utilize an indirect method of sperm transfer via specialized male palpal structures. In entelegyne spiders, these structures exhibit a remarkable complexity, comprising various sclerites that interlock with the female genitalia to provide stability and facilitate sperm transfer. Among the four primary coupling mechanisms recognized in entel...

New taxonomic and faunistic data on the agelenid spiders of Turkiye and the Caucasus are provided. Five species are described as new to science: Maimuna antalyensissp. nov. (♂♀; Turkiye: Antalya), Tegenaria ballarinisp. nov. (♂♀; Turkiye: Antalya), T. beyazcikasp. nov. (♂; Turkiye: Antalya), T. egrisianasp. nov. (♂♀; Georgia: Imereti), and T. hoefe...

New taxonomic data and distribution records on liocranid spiders in the West Palaearctic are provided. Nine species of Mesiotelus Simon, 1897 are described as new to science: M. alanyensis Zamani, Fomichev, Kaya & Marusik, sp. nov. (female; Türkiye), M. bosmansi Zamani, Fomichev & Marusik, sp. nov. (female; Türkiye), M. confusus Zamani, Fomichev, N...

Species of the genus Eresus Walckenaer, 1805 – commonly known as ladybird spiders – are well characterized by the males' distinct abdominal pattern. The bright red background with four to six dots is a rather uniform pattern within the genus with only a surprisingly growing number exceptions. We used both molecular and morphological data to sort ou...

This paper presents the results of a preliminary survey of the spiders of Marmara region and provides new data on the spider fauna of Türkiye. During the study, spider samples were collected by hand aspirator and pitfall traps. As a result, Heliophanus apiatus Simon, 1868 (Salticidae) is recorded for the first time from Türkiye. Also, occurrence of...

The rare known linyphiid spider Walckenaeria incisa (O. Pickard-Cambridge, 1871) is recorded for the first time in Türkiye. Species were collected using pitfall traps in a red pine forest near Spil Mountain. With this record, the number species belonging to Walckenaeria in Türkiye has increased to 12. Walckenaeria stylifrons (O. Pickard-Cambridge,...

Anatextrix monstrabilis sp. nov. (Araneae: Agelenidae) is described and illustrated, based on male and female specimens collected from Adana Province, Türkiye. The new species has an L-shaped male palpal femur bearing multiple apophyses, which is a rare trait in spiders. Anatextrix monstrabilis sp. nov. is the second species of the recently describ...

Türkiye is known to have the highest diversity of the spider family Agelenidae in the Western Palaearctic and the highest diversity of the subfamily Ageleninae globally. The new agelenid genus Anatextrix gen. nov. (Ageleninae, Textricini) and its type species, A. spectabilis sp. nov. (♂♀; Mersin and Adana provinces, southern Türkiye), are described...

It has become increasingly popular to observe animal behaviour by video recording done by amateur naturalists. Here we report the first observed defensive behaviour of a male of Lachesana blackwalli (O. Pickard-Cambridge, 1872) (Araneae, Zodariidae) based on a video recorded by a non-specialist observer. The spider was encountered during a night wa...

New distribution records and additional information for Zangherella apuliae (Caporiacco, 1949), the only known species of Anapidae in Turkey, are presented.

Linyphiidae üyesi örümcek türü Neriene clathrata (Sundevall, 1830) Türkiye'den birkaç kez toplanmış, ancak bu tür güncel tür kontrol listelerinde hala listelenmemektedir. Bu çalışmada, tür hakkındaki bilgiler yeni toplanan örneklerle kısaca özetlenmiştir. Ayrıca, N. furtiva (O. Pickard-Cambridge, 1871) ve N. radiata (Walckenaer, 1841) türleri için...

During field trips made to investigate the dysderid fauna of Turkey, specimens of Dysdera sultani Deeleman-Reinhold, 1988, previously known from males only, were collected. Detailed descriptions and photographs of the copulatory organs of both sexes are given. In addition, photographs of some closely related Anatolian species are included.

This paper presents the results of recent field surveys and provides new data on the spider fauna of Turkey. The following 9 taxa are new records for Turkey: Larinia chloris (Audouin, 1826); Macrothele sp.; Arctosa tbilisiensis Mcheidze, 1946; Pisaura consocia (O. P.-Cambridge, 1872); Prodidomus redikorzevi Spassky, 1940; Macaroeris flavicomis (Sim...

A new species, Hygrocrates deelemanus Kunt & Yağmur sp. n., is described on the basis of both sexes from the Mediterranean region of Turkey. Detailed morphological descriptions, diagnosis and figures of the copulatory organs of both Turkish species are presented. An identification key is presented for all the currently known species of Hygrocrates.

A new species of the spider genus Harpactea Bristowe, 1939 is described from the Aegean region of Turkey – Harpactea erseni sp. n. (males only). Detailed morphological description and illustrations of the new species are provided. The relationships of the new species are discussed.

A new species of the spider genus Tegenaria Latreille, 1804 is described, based on newly collected specimens from Turkey. Detailed morphological descriptions, diagnosis and figures of the copulatory organs of both sexes are presented. Finally, a checklist and distribution maps for Turkish Tegenaria species are provided.

Türkiye’den yeni bir Harpactea Bristowe, 1939 türü tanımlanmıştır. Yeni türün detaylı morfolojik özellikleri ve sistematik karakterlerine ait fotoğraflar verilmiştir.

The theridiid spider Argyrodes argyrodes (Walckenaer, 1842) is recorded for the first time from Turkey. This represents a new spider genus and species record for Turkey. The characteristic features and drawings of both sexes are presented in this study.

The theridiid spider Neospintharus syriacus (O. P.-Cambridge, 1872) is recorded for the first time from Turkey. This represents a new spider genus and species record for Turkey. The characteristic features and drawings of both sexes are presented in this study.

In this study, the herpetofauna of nine islands in Uluabat Lake was investigated. On these islands, a total of 83 specimens belonging to nine species were listed. Of these, one belongs to the urodelans, one belongs to the anurans, one belongs to the tortoises, three belong to the lizards and three belong to the snakes.

The crab spiders, Family Thomisidae, were collected between the years of 2006-2008 from the Uludağ Mountain, North-West Turkey. A total of 72 adult specimens belong to Thomisidae family were examined and identified. The Thomisidae family was represented by 15 species in 8 genera. Synema globosum (Fabricius, 1775) and Thomisus onustus Walckenaer, 18...

Terzioğlu Island of Uluabat Lake (Bursa), west part of Turkey, was surveyed for Araneae between September 2003 and July 2005. This work represents the most recent spider faunal survey of Terzioğlu Island. Spiders of 35 species belonging to 33 genera and 16 families were collected. The Palearctic species are dominant in the island. Glyptogona sextub...