Ryuthela shimojanai, Xu & Liu & Ono & Chen & Kuntner & Li, 2017

Xu, Xin, Liu, Fengxiang, Ono, Hirotsugu, Chen, Jian, Kuntner, Matjaž & Li, Daiqin, 2017, Targeted sampling in Ryukyus facilitates species delimitation of the primitively segmented spider genus Ryuthela (Araneae: Mesothelae: Liphistiidae), Zoological Journal of the Linnean Society 181, pp. 867-909 : 890-892

publication ID	F160993-028B-4CBB-A233-54F82230E0AD
publication LSID	lsid:zoobank.org:pub:F160993-028B-4CBB-A233-54F82230E0AD
persistent identifier	https://treatment.plazi.org/id/A54587BB-FFCB-FFCB-B6FA-FA05EBCCD446
treatment provided by	Plazi
scientific name	Ryuthela shimojanai
status	sp. nov.

Treatment

RYUTHELA SHIMOJANAI View in CoL SP. NOV.

urn:lsid:zoobank.org:act:BCFACE25-4C4E-471D-B26F-2EF11B805621

Holotype: Female (XUX-2012-323), collected at Taira near Haneji-Dam , Nago-shi, Okinawajima island, Japan, 26.59°N, 127.03°E, 100 m a.s.l., 18 December 2012, by D. Li, F. X. Liu and X. Xu. GoogleMaps

Paratypes: One female (XUX-2012-333), collected at the same locality, 18 December 2012, by D. Li, F. X. Liu and X. Xu .

Etymology: The species epithet honours Matsuei Shimojana who pioneered the study of liphistiids in Okinawa.

Diagnosis: Females of Ryuthela shimojanai sp. nov. can be distinguished from all other Ryuthela species on Okinawajima island by the relative length of the receptacular clusters (slightly longer than their width) and the lack of obvious granula in dorsal view ( Fig. 10A, C). Ryuthela shimojanai sp. nov. can also be diagnosed from all other Ryuthela species on Okinawajima island by the following unique nucleotide substitutions in the standard DNA barcode alignment: C (25), T (86), C (244), G (292), C (298), G (319), A (379), T (409), C (424), G (457), T (469).

Description: Female (holotype). Carapace brown; opisthosoma light brown, with dark brown tergites; sternum narrow, much longer than wide; a few long pointed hairs running over ocular mound in a longitudinal row; chelicerae robust with promargin of cheliceral groove with 13 denticles of variable size; legs with strong hairs and spines; opisthosoma with 12 tergites, the fifth largest; 7 spinnerets. Measurements: BL 12.00, CL 5.33, CW 4.56, OL 6.40, OW 4.61; ALE> PLE> PME> AME; palp 9.62 (3.25 + 1.75 + 2.10 + 2.52), leg I 10.80 (3.55 + 1.73 + 2.12 + 2.15 + 1.25), leg II 10.73 (3.32 + 1.88 + 1.95 + 2.28 + 1.39), leg III 10.29 (3.18 + 1.92 + 1.88 + 1.76 + 1.55), leg IV 16.62 (4.76 + 2.22 + 3.10 + 4.24 + 2.30).

Female genitalia. A pair of receptacular clusters along the anterior margin of bursa copulatrix with their basal parts close to each other or separated; the length of the receptacular clusters slightly longer than their width, with unclear granula in dorsal view; without genital stalks ( Fig. 10A–D).

Male. Unknown.

892 X. XU ET AL.

Distribution: Okinawajima island (Taira, Nago-shi), Okinawa Prefecture, Japan.