Icius kulakangri, Yang & Zhang, 2024

Yang, Zhiyong & Zhang, Junxia, 2024, On eight species of Chrysillini from Xizang, China (Araneae: Salticidae: Salticinae), Zootaxa 5447 (2), pp. 151-187 : 167-169

Icius kulakangri sp. nov. (NJËÑƋ伊ø)

Figs 5, 7 , 92–115

Type material. Holotype: ♂ (MHBU-ARA-00026556), CHINA: Xizang Autonomous Region, Shannan City , Lhozhag County (ăü县), Lhozhag Town (ăüā), Panarin Temple (ñaeöȕ), 28.3848°N, 90.8631°E, 3914 m a.s.l., 23 July 2023, leg. Y. Hou, Z. Yang, Y. Ni & Y. Badan. Paratypes: 1♂ 2♀ (MHBU-ARA-00026604, MHBUARA-00026727), both with same data as the holotype .

Etymology. The specific epithet is from Kula Kangri (NJËÑƋë), because the type specimens were collected from the agricultural area close to the Panarin Temple, which is situated at the base of Kula Kangri; noun in apposition.

Diagnosis. This species differs from I. faker sp. nov. in the presence of two white lateral stripes on the male dorsal abdomen, the thin embolus, the small copulatory openings and the absence of atrial ridges ( Figs 96 , 97 , 109–115 ; vs. the male dorsal abdomen with a middle foliate marking, embolus flat and wide, copulatory openings broad, and atrial ridges clearly visible in I. faker sp. nov., Figs 31 , 33 , 46–53 ). In addition, the males of the new species can be distinguished from I. zang by the slightly bent embolus ( Figs 110 , 113 ; vs. the embolus straight in I. zang , see Wang et al. 2024: 156, fig. 9B), and the females can be distinguished by the longer copulatory ducts and the copulatory openings obviously anterior to spermathecae ( Figs 111, 112 , 114, 115 ; vs. copulatory ducts shorter and copulatory openings near the spermathecae in I. zang , see Wang et al. 2024: 157, figs 10A–B). It differs from I. han sp. nov. in the slightly bent embolus, the narrower lamellar tegular process (LP), the retrolateral constriction between the posterior lobe of tegulum (PL) and tegulum not right-angled, and the smaller copulatory openings ( Figs 110, 111 , 113, 114 ; vs. embolus straight, LP wider, the retrolateral constriction between PL and tegulum right-angled, and the copulatory openings larger in I. han sp. nov., Figs 60, 62 , 64, 66 ).

Description. Male. Habitus as in Figs 92, 96 , 97, 99 . Measurements of holotype: carapace 1.92 long, 1.29 wide, abdomen 2.30 long, 1.52 wide; eye measurements: AME 0.30, ALE 0.18, PME 0.06, PLE 0.18; leg measurements: Ⅰ 3.37 (1.02, 0.57, 0.75, 0.45, 0.58), II 2.76 (0.87, 0.40, 0.62, 0.42, 0.45), III 3.06 (0.94, 0.43, 0.58, 0.61, 0.50), IV 3.52 (1.05, 0.42, 0.81, 0.66, 0.58); leg formula 4132. Carapace black brown, with white lateral margins and white stripe in middle ( Figs 96 , 97, 99 ). Abdomen dark brown, with yellowish spots in posterior half and two wide longitudinal white stripes ( Figs 96 , 97 ). Chelicerae black, with two promarginal and one retromarginal teeth ( Figs 103, 104 ). Legs brown, leg I darker than others ( Figs 96 , 97, 101 ).

Palp (107–110, 113): embolus thin and moderately long, slightly bent; tegulum rough; tegular bump medio-retrolaterally located; RTA dagger-like, palp with white scales on dorsal side ( Figs 92, 96 ).

Female. Habitus as in Figs 93–95 , 98, 100 . Measurements of paratype (one female in MHBU-ARA-00026727): carapace 2.35 long, 1.57 wide, abdomen 2.50 long, 1.74 wide; eye measurements:AME 0.36, ALE 0.26, PME 0.06, PLE 0.16; leg measurements: Ⅰ 3.56 (1.09, 0.60, 0.78, 0.54, 0.56), II 3.04 (0.93, 0.56, 0.58, 0.47, 0.50), III 3.40 (1.11, 0.48, 0.64, 0.62, 0.55), IV 4.40 (1.31, 0.59, 0.97, 1.05, 0.48); leg formula 4132. Carapace blackish-brown, with white and yellow scales ( Figs 95 , 98 ). Chelicerae black, with two promarginal and one retromarginal teeth ( Figs 105, 106 ). Abdomen dark, with central yellowish-brown markings ( Figs 95 , 98 ). Legs yellow ( Figs 93–95 , 102 ).

Epigynum (111, 112, 114, 115): copulatory openings small, separated from each other and located anterior to spermathecae; with two pockets close to genital groove. Vulva (112, 115): copulatory ducts linear, accessory glands not obvious, spermathecae small, fertilization ducts at anterior region of spermathecae.

Natural history. Rock-dwellers, with nest aggregations ( Figs 5, 7 )

Distribution. China (Xizang) ( Fig. 1 ).

Figures

FIGURE 1. Distributional records of Chrysilla yarlungzangbo sp. nov., Icius faker sp. nov., I. han sp. nov., I. kui sp. nov., I. kulakangri sp. nov., I. zhengi sp. nov., Nandicius gyirongensis (Hu, 2001) comb. nov., and Siler niser Caleb, Parag & Datta-Roy, 2023.

FIGURES 2–7. Habitats of the described species in this paper. 2–3. Chrysilla yarlungzangbo sp. nov. in Medog County; 4. Siler niser Caleb, Parag & Datta-Roy, 2023 in Zayu County; 5, 7. Icius kulakangri sp. nov. in Lhozhag County; 6. I. kui sp. nov. in Bome County.

FIGURES 92–96. Icius kulakangri sp. nov., living males (92, 96) and females (93–95) from Lhozhag County.

FIGURES 97–106. Icius kulakangri sp. nov., male holotype (97, 99, 101, 103, 104) and female paratype (98, 100, 102, 105, 106) from Lhozhag County. 97–100. Habitus, dorsal (97, 98) and lateral (99, 100) views; 101, 102. Left leg I; 103–106. Chelicerae, front (103, 105) and back (104, 106) views.

FIGURES 107–112. Icius kulakangri sp. nov., male left palp (107–110), epigynum (111) and vulva (112), in ventral (110, 111), prolateral (107), retrolateral (109) and dorsal (108, 112) views.

FIGURES 113–115. Icius kulakangri sp. nov., male palp (113), epigynum (114) and vulva (115), in ventral (113, 114) and dorsal (115) views.

FIGURES 28–32. Icius faker sp. nov., living males (29–31) and females (28, 32) from Rinbung County.

FIGURES 33–40. Icius faker sp. nov., male holotype (33, 36, 39) and female paratype (34–35, 37–38, 40) from Rinbung County. 33, 34. Habitus; 35, 36. Prosomas; 37. Left leg I, with robust setae on femur; 38. Robust setae along lateral margin of eye area on carapace; 39, 40. Chelicerae, back views.

FIGURES 41–49. Icius faker sp. nov., male left bulb (41–44), left palp (45–47), epigynum (48) and vulva (49), in ventral (42, 43, 46, 48), prolateral (41, 45), retrolateral (44, 47) and dorsal (49) views.

FIGURES 50–53. Icius faker sp. nov., male left palp (50, 51), epigynum (52) and vulva (53), in ventral (50, 52), retrolateral (51) and dorsal (53) views.

FIGURES 59–63. Icius han sp. nov., male left palp (59–61), epigynum (62) and vulva (63), in ventral (60, 62), prolateral (59), retrolateral (61) and dorsal (63) views.

FIGURES 64–67. Icius han sp. nov., male left palp (64), RTA (65), epigynum (66) and vulva (67), in ventral (64, 66), retrolateral (65) and dorsal (67) views.