Hersilia sagada Lin &amp; Li 2022, sp. nov.
Creators: name: Lin, Yejie
name: Li, Shuqiang
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Hersiliidae
Hersilia
Hersilia sagada

description: <i>Hersilia sagada</i> sp. nov. (Figs 1C–D, 5–6, 9) Type material. Holotype &amp;male; (IZCAS-Ar42718), the Philippines, Luzon Island, Sagada Town, underground river in a cave (large, humid cave with a river), 17.0849°N, 120.9049°E, elev. ca 1432 m, 28.V.2015, Francesco Ballarin and Yunchun Li leg. Paratypes. 4&amp;female; (IZCAS-Ar42719–Ar42722), same data as holotype. Diagnosis. The males of the new species resemble <i>H. aoqin</i> <b>sp. nov.</b> by the long and strongly coiled embolus. They can be distinguished from <i>H. aoqin</i> <b>sp. nov.</b> by the embolus coiling 2600° around the MA (Fig. 5) (<i>vs.</i> 4100° in <i>H. aoqin</i> <b>sp. nov.</b> (Fig. 2)), and the embolus without apophysis (Fig. 5) (<i>vs.</i> embolus with two apophyses in <i>H. aoqin</i> <b>sp. nov.</b> (Fig. 2D)). Females can be distinguished by the copulatory duct with ten turns (Fig. 6B) (<i>vs.</i> eight turns in <i>H. aoqin</i> <b>sp. nov.</b> (Fig. 2)), posterior margin with a distinct indentation (<i>vs.</i> recurved in <i>H. aoqin</i> <b>sp. nov.</b>) and the ratio of the length of the spermathecal duct to the length of the spermathecae is almost 3:2 (Fig. 6B) (<i>vs.</i> 5: 1 in <i>H. aoqin</i> <b>sp. nov.</b>). Description. Male holotype (Figs 1C, 5). Total length 4.38. Carapace 1.91 long, 1.79 wide, pale white with dark green irregular pattern, with a distinct arrow-shaped white mark on cephalic region, margin black. Clypeus height 0.27, dark green anteriorly. Chelicerae yellow-brown, black at base, with eight retromarginal denticles. Eye area dark green around PME and PLE, white arrow pattern posteriorly; eye sizes and interdistances: AME 0.21, ALE 0.13, PME 0.17, PLE 0.18, AME–AME 0.10, AME–ALE 0.08, PME–PME 0.09, PME–PLE 0.12, AME–PME 0.05, ALE–PLE 0.03. Legs pale, with dark green stripe. Leg measurements: leg I: 21.74 (5.30 + 6.39 + 5.71 +3.40 + 0.94), leg II: 21.49 (5.37 + 6.26 + 5.52 + 3.36 + 0.98), leg III: 6.77 (2.05 + 2.11 + 1.87 + 0.74), leg IV: 18.63 (4.58 + 5.34 + 5.20 + 2.63 + 0.88). Leg formula: 1243. Abdomen 2.33 long, 2.18 wide, with black pattern; lancet-shaped cardiac mark; three pairs of greenish-black muscle impressions, laterally black. bS 0.66, tS 2.74. Palp (Fig. 5). Tibia longer than patella, with a hood prolaterally; cymbium long, almost two times longer than wide, with four strong apical spines; tegulum obscured by embolus coils; embolus originating at three o’clock, coiling around median apophysis; median apophysis pointed distally, with a hook-shaped tegular projection. Female paratype (Figs 1D, 6). Colouration and pattern as in male. Total length 5.18. Carapace 2.13 long, 2.02 wide. Clypeus height 0.38. Chelicerae with 8 retromarginal denticles. Eye sizes and interdistances: AME 0.21, ALE 0.18, PME 0.22, PLE 0.11, AME–AME 0.16, AME–ALE 0.14, PME–PME 0.07, PME–PLE 0.08, AME–PME 0.06, ALE–PLE 0.03. Leg measurements: leg I: 19.06 (4.94 + 5.28 + 4.64 +3.18 + 1.02), leg II: 19.46 (4.82 + 5.75 + 4.76 + 3.04 +1.09), leg III: 7.07 (2.20 + 2.17 + 1.88 + 0.82), leg IV: 17.99 (4.67 + 5.03 + 4.51 + 2.73 + 1.05). Leg formula: 2143. Abdomen 2.85 long, 3.12 wide. bS 1.02, tS 4.57. Epigyne (Fig. 6) with epigynal teeth posteriorly; median septum narrowed, separating two oval atria; copulatory opening at anterior part of atria. Copulatory ducts translucent. Spermathecae kidney-shape, spermathecal ducts consistently thin, ratio of length of spermathecal duct to length of spermathecae almost 3:2. Fertilization ducts narrowed, sickle-shaped. Etymology. The species is named after the type locality; noun. Distribution. Known only from the type locality.
description: Published as part of <i>Lin, Yejie &amp; Li, Shuqiang, 2022, Taxonomic notes on seven species of the family Hersiliidae (Arachnida: Araneae) from China and the Philippines, pp. 132-145 in Zoological Systematics 47 (2)</i> on page 140, DOI: 10.11865/zs.2022204, http://zenodo.org/record/7175761