Hersilia sagada, Lin & Li, 2022

Lin, Yejie & Li, Shuqiang, 2022, Taxonomic notes on seven species of the family Hersiliidae (Arachnida: Araneae) from China and the Philippines, Zoological Systematics 47 (2), pp. 132-145 : 140

publication ID	https://doi.org/ 10.11865/zs.2022204
publication LSID	lsid:zoobank.org:pub:CAC2F9CD-8E07-414D-90C4-2ED93492B466
DOI	https://doi.org/10.5281/zenodo.7172144
persistent identifier	https://treatment.plazi.org/id/A857879F-A944-FFA6-56F3-B826FD5FF92E
treatment provided by	Felipe
scientific name	Hersilia sagada
status	sp. nov.

Treatment

Hersilia sagada View in CoL sp. nov. ( Figs 1C–D View Figure 1 , 5–6 View Figure 5 View Figure 6 , 9 View Figure 9 )

Type material. Holotype ♂ (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. GoogleMaps Paratypes. 4♀ (IZCAS-Ar42719–Ar42722), same data as holotype GoogleMaps .

Diagnosis. The males of the new species resemble H. aoqin sp. nov. by the long and strongly coiled embolus. They can be distinguished from H. aoqin sp. nov. by the embolus coiling 2600° around the MA ( Fig. 5 View Figure 5 ) (vs. 4100° in H. aoqin sp. nov. ( Fig. 2 View Figure 2 )), and the embolus without apophysis ( Fig. 5 View Figure 5 ) (vs. embolus with two apophyses in H. aoqin sp. nov. ( Fig. 2D View Figure 2 )). Females can be distinguished by the copulatory duct with ten turns ( Fig. 6B View Figure 6 ) (vs. eight turns in H. aoqin sp. nov. ( Fig. 2 View Figure 2 )), posterior margin with a distinct indentation (vs. recurved in H. aoqin sp. nov.) and the ratio of the length of the spermathecal duct to the length of the spermathecae is almost 3:2 ( Fig. 6B View Figure 6 ) (vs. 5: 1 in H. aoqin sp. nov.).

Description. Male holotype ( Figs 1C View Figure 1 , 5 View Figure 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 View Figure 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 View Figure 1 , 6 View Figure 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 View Figure 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.