Pardosa astrigera

Pardosa astrigera is a species of wolf spider in the family Lycosidae.[1] They are found throughout Japan, Korea, China, Taiwan, and far east Russia.[1][2][3][4][5][6]

Pardosa astrigera
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Lycosidae
Genus: Pardosa
Species:
P. astrigera
Binomial name
Pardosa astrigera
(Koch, 1978)

Description

Pardosa astrigera is a small wolf spider with the body length ranging between 6–10 mm (0.24–0.39 in) for females and 5–9 mm (0.20–0.35 in) for males.[2][3][4] The cephalothorax varies from blackish-brown to yellowish-brown with a distinct median dorsal stripe running the length of the carapace.[1][3][4] White setae are typically present on the pedicel.[1][2] The sternum is blackish-brown.[1][4] The abdomen varies from blackish-brown to yellowish-brown, with a subdued brownish-yellow longitudinal dorsal stripe.[1][4] There is a high degree of variation in the dorsal pattern on the abdomen, however the typical presentation includes several thin lateral chevrons and 5 pairs of spots along the margins.[1][2][4][5] The ventral side of the abdomen is yellowish-brown with a blackish-brown middle.[1][2][4][5]

Identification

Descriptive diagnostic features with illustrations can be found in Koch 1878,[1] Saitō 1939,[7] and Namkung 2003.[4] Diagnostic photographs are provided in Baba and Tanikawa 2015[3]

Visual Identification
Unique median dorsal stripe on the carapace of Pardosa astrigera.

Pardosa astrigera is one of the few spiders that can be identified at a glance, as these spiders have a unique longitudinal band on the median of the carapace.[2][3] The band is yellowish-brown in color, rounded behind the eyes, forming a star shape around the fovea, and narrowing as it reaches the abdomen.[1][3]

Habitat

Pardosa astrigera have been found on plains, mountains, paddy fields, open grasslands, riverbanks, and other areas. They are often found in relatively dry regions.[2][3][4]

Seasonality

Adult males and females can be found from spring to autumn.[3]

Synonyms
  • Lycosa astrigera (Bösenberg & Strand, 1906: p.322)[8]
  • Lycosa T-insignita (Bösenberg & Strand, 1906: p.324)[8]
  • Tarentula phila (Dönitz & Strand, in Bösenberg & Strand, 1906: p.389)[8]
  • Lycosa cinereofusca (Dönitz & Strand, in Bösenberg & Strand, 1906: p.393)[8]
  • Lycosa sagibia (Strand, 1918: p.85)[9]
  • Pirata aomorensis (Saito, 1939: p.71)[7]
  • Pardosa cinereofusca (Roewer, 1955: p.161)[10]
  • Pardosa sagibia (Roewer, 1955: p.172)[10]
  • Pardosa T-insignita (Roewer, 1955: p.174)[10]
  • Avicosa aomorensis (Roewer, 1955: p.234)[10]
  • Lycosa philia (Roewer, 1955: p.269)[10]
  • Pardosa pseudochionophila (Schenkel, 1963: p.357)[11]
  • Pardosa fiusignita (Wang, 1981: p.123)[12]

References
  1. Koch, Ludwig (October 3, 1877). "Japanesische Arachniden und Myriapoden". Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien (in German). 27: 775–778 – via Biodiversity Heritage Library.
  2. Tanaka, Hozumi (1993). "Lycosid Spiders of Japan XI. The Genus Pardosa C. L. KOCH — paludicola-group". Acta Arachnologica. 42 (2): 159–164. doi:10.2476/asjaa.42.159.
  3. 友希, 馬場; 谷川, 明男 (2015). クモハンドブック (in Japanese). p. 72. ISBN 978-4-8299-8128-3.
  4. 남궁, 준 (2003). 한국의 거미 (in Korean). Kyo hak sa. p. 329. ISBN 978-89-09-07075-1.
  5. Lee, C. (1966). "Spiders of Formosa (Taiwan)". Taichung Junior Teachers College Publisher (in Chinese): 60–61 – via World Spider Catalog.
  6. Bern, Natural History Museum. "Pardosa astrigera L. Koch, 1878". World Spider Catalog.
  7. Saitō, Saburō (1939). "On the Spiders from Tohoku (Northernmost Part of the Main Island), Japan". Saito Ho-On Kai Museum Research Bulletin. 18: 1–91 – via World Spider Catalog.
  8. Bösenberg, Wilhelm; Strand, Embrik (1906). "Japanische Spinnen". Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft (in German). 30: 93–422 – via Biodiversity Heritage Library.
  9. Strand, Embrik (1918). "Zur Kenntnis japanischer Spinnen i and ii". Archiv für Naturgeschichte (in German). 82: 73–113 – via Biodiversity Heritage Library.
  10. Roewer, Carl (1955). Katalog der Araneae von 1758 bis 1940, bzw. 1954. 2. Band, Abt. a (Lycosaeformia, Dionycha [excl. Salticiformia]). 2. Band, Abt. b (Salticiformia, Cribellata) (Synonyma-Verzeichnis, Gesamtindex) (in German). Institut royal des Sciences naturelles de Belgique – via World Spider Catalog.
  11. Schenkel, Ehrenfried (1963). "Ostasiatische Spinnen aus dem Muséum d'Histoire naturelle de Paris". Mémoires du Muséum National d'Histoire Naturelle. Série A, Zoologie (in French). 25 (1): 1–481 – via Biodiversity Heritage Library.
  12. 王, 洪金 (1985). "稻田蜘蛛的保护利用". 湖南科学技术出版社 (in Chinese): 1–188 – via World Spider Catalog.
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