Heptathela otoha, Xu, Xin, Ono, Hirotsugu, Kuntner, Matjaz, Liu, Fengxiang & Li, Daiqin, 2019

Xu, Xin, Ono, Hirotsugu, Kuntner, Matjaz, Liu, Fengxiang & Li, Daiqin, 2019, A taxonomic monograph of the liphistiid spider genus Heptathela, endemic to Japanese islands, ZooKeys 888, pp. 1-50 : 1

Heptathela otoha sp. nov. Fig. 19

Type material.

Holotype: JAPAN · ♀; Okinawa-ken, Nakijin-son, Mt. Otoha-dake; 26.67N, 127.97E; alt. 80 m; 27 December 2012; D. Li, F.X. Liu and X. Xu leg.; XUX-2012-535.

Paratypes: JAPAN · 3 ♀♀; Okinawa Prefecture, Motobu-cho, Yamazato; 26.67N, 127.91E; alt. 160 m; 11 May 2014; D. Li and B. Wu leg.; XUX-2014-094, 097, 099 · 3 ♀♀; Okinawa Prefecture, Nakijin-son, Mt. Otoha-dake; 26.67N, 127.97E; alt. 100 m; 11 May 2014; D. Li and B. Wu leg.; XUX-2014-101, 102, 103.

Diagnosis.

Females of H. otoha sp. nov. can be distinguished from those of H. yanbaruensis , H. unten sp. nov., and H. crypta sp. nov. by the inner receptacular clusters with several granules, albeit these inner clusters are difficult to be separated from the laterals ( Fig. 19 A–D ). H. otoha sp. nov. can also be diagnosed from all other Okinawa group Heptathela species by the following unique nucleotide substitutions in the standard DNA barcode alignment: G (83), G (206), G (488).

Description.

Female (Holotype). Carapace yellow brown; opisthosoma light brown, with brown and black-spotted tergites; cheliceral groove with 13 pronounced denticles; seven spinnerets. Measurements: BL 10.92, CL 4.75, CW 4.35, OL 6.60, OW 4.90; ALE> PLE> PME> AME; palp 8.30 (2.78 + 1.39 + 1.90 + 2.23), leg I 9.80 (3.05 + 1.65 + 1.95 + 1.95 + 1.20), leg II 9.21 (2.90 + 1.50 + 1.81 + 1.90 + 1.10), leg III 9.84 (2.70 + 1.70 + 1.62 + 2.35 + 1.47), leg IV 14.74 (4.00 + 1.90 + 2.70 + 4.03 + 2.11).

Female genitalia. A pair of depressions on the ventro-lateral part of genital atrium ( Fig. 19C, D ). Paired receptacular clusters along the anterior margin of bursa copulatrix, divided into indistinct two parts, but difficulty to separate, both with several granules, with very short genital stalks ( Fig. 19 A–D ).

Male. Unknow.

Etymology.

The species epithet, a noun in apposition, refers to the type locality.

Distribution.

The species is endemic to the Japanese island Okinawajima ( Fig. 1C ).

Figures

Figure 1. General somatic morphology of Heptathela kimurai (Kishida, 1920) A dorsal view B ventral view and map showing the sampling localities of Heptathela specimens from Kyushu to central Ryukyus (C).

Figure 19. Female genital anatomy of Heptathela otoha sp. nov. A, C 2535 (holotype, short for XUX- 2012 - 535) B, D 4094 A, B vulva dorsal view C, D vulva ventral view. Scale bar: 0.5 mm.