Porrhomma longjiangense Zhu & Wang 1983
Creators
Description
Porrhomma longjiangense Zhu & Wang, 1983
Figs. 25A–F.
Porrhomma longjiangensis Zhu & Wang, 1983 — Zhu & Wang (1983): p. 148, Figs. a–e (descr. ♀); synonymised with P. rakanum Yaginuma & Saito, 1981 by Li & Song (1993): p. 250, 256.
P. longjiangensis — Zhu et al. (1986): p. 207, Figs. 3a–b (descr. ♂).
P. longjiangensis — Eskov & Marusik (1993): p. 52, Figs. 45–48 (♂ ♀).
P. longjiangense — Marusik & Koponen (2000): p. 62; removed from synonymy with P. rakanum.
P. longjiangense — Marusik et al. (2001): p. 87; removing from synonymy with P. rakanum confirmed.
P. longjiangense — Tanasevitch (2012): p. 372, Figs. 15–22 (♂ ♀); removing from synonymy with P. rakanum confirmed.
Material examined. RUSSIA: Sakhalin Isl., CE part, Leonidovka River, 8 km SE of Leonidovo Vill., 49°16.506'N, 142°58.390'E, 9 Aug 2001, 11 Ƌ 23 ♀, leg. Yu. M. Marusik (CYM).
Diagnosis. Among four species of the magnum -group, P. longjiangense and P. magnum have developed eyes with black rings around. P. longjiangense can be distinguished from P. magnum by fully developed eyes (Fig. 25A) and Fe III–IV without dorsal spines.
Description. ♀ (from Sakhalin Island, Russia, 9 Aug 2001). Carapace orange-brown, 0.90 mm wide, eyes normal, PME–PME = 1.0 (Fig. 25A). Abdomen brown-grey. Fe I–II with one dorsal spine, Fe I with one prolateral spine. Ti I with one prolateral spine, Ti I–II with one retrolateral spine. Tm Mt I = 0.30, Mt I/CW = 1.17.
Epigynum with lateral wings (Fig. 25C). Copulatory ducts are very long, with ascending, descending, and again ascending part (Figs. 25D–F).
Ƌ (together with female). The AP is shorter than wide, with a convex upper edge, the space between AP and PA very narrow. Embolus very long with a broad velum. Velum with a pigmented spot (Fig. 25B).
Variation. Ƌ ♀. Carapace 0.84–0.96 mm wide. Tm Mt I = 0.27–0.31, Mt I/CW = 1.10–1.17 (n = 6).
Ecology. Under stones on river banks (Eskov & Marusik 1993), in mosses and leaf litter (Tanasevitch 2012).
Global distribution. Russian Far East, northeastern China after Tanasevitch (2012), Marusik et al. (2001) and this paper. See Fig. 26.
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Event date
- 2001-08-09
- Family
- Linyphiidae
- Genus
- Porrhomma
- Kingdom
- Animalia
- Order
- Araneae
- Phylum
- Arthropoda
- Scientific name authorship
- Zhu & Wang
- Species
- longjiangense
- Taxon rank
- species
- Verbatim event date
- 2001-08-09
- Taxonomic concept label
- Porrhomma longjiangense Zhu, 1983 sec. Růžička, 2018
References
- Zhu, C. & Wang, H. (1983) [A new species of spider of the genus Porrhomma (Araneae: Linyphiidae)]. Journal of the Bethune Medical University, 9, 148 - 149. [in Chinese]
- Yaginuma, T. & Saito, H. (1981) A new cave spider of the genus Porrhomma (Araneae, Linyphiidae) found in a limestone cave of Shikoku, southwest Japan. Journal of the Speleological Society of Japan, 6, 33 - 36.
- Li, S. & Song, D. (1993) On the diagnostic characters of linyphiid spiders, with descriptions of some species (Araneae: Linyphiidae). Scientific Treatise on Systematic and Evolutionary Zoology, 2, 247 - 256. [in Chinese, English summary]
- Zhu, C., Wen, Z. & Sun, X. (1986) Description of two new species and the male spider of one species of Linyphiidae (Arachnida: Araneae). Journal of the Norman Bethune University of the Medical Sciences, 12, 205 - 208. [in Chinese, English summary]
- Eskov, K. Y. & Marusik, Y. M. (1993) New data on the taxonomy and faunistics of North Asian linyphiid spiders (Aranei Linyphiidae). Arthropoda Selecta, 2 (4), 41 - 79.
- Marusik, Y. M. & Koponen, S. (2000) New data on spiders (Aranei) from the Maritime Province, Russian Far East. Arthropoda Selecta, 9, 55 - 68.
- Marusik, Y. M. & Koponen, S. & Danilov, S. N. (2001) Taxonomic and faunistic notes on linyphiids of Transbaikalia and south Siberia (Araneae, Linyphiidae). Bulletin of the British Arachnological Society, 12, 83 - 92.
- Tanasevitch, A. V. (2012) A new species of Porrhomma Simon, 1884 from the mountains of southern Siberia, Russia (Aranei: Linyphiidae: Linyphiinae). Arthropoda Selecta, 21, 369 - 374.