Synagelides emangou Liu, 2022

Liu, Ke-ke, Zhao, Zi-Yi, Xiao, Yong-hong & Peng, Xian-Jin, 2022, Five new species of Synagelides Strand, 1906 from China (Araneae, Salticidae), ZooKeys 1102, pp. 59-82 : 59

publication ID	https://dx.doi.org/10.3897/zookeys.1102.76800
publication LSID	lsid:zoobank.org:pub:BC653F50-304F-4559-9075-EDF212EB8102
persistent identifier	https://treatment.plazi.org/id/CCBBBC83-FE2D-4FCD-9EF8-52CF934B8B17
taxon LSID	lsid:zoobank.org:act:CCBBBC83-FE2D-4FCD-9EF8-52CF934B8B17
treatment provided by	ZooKeys by Pensoft
scientific name	Synagelides emangou Liu
status	sp. nov.

Treatment

Synagelides emangou Liu View in CoL sp. nov.

Figs 1 View Figure 1 , 2 View Figure 2 , 3 View Figure 3

Material examined.

Holotype ♂, 33°57'23.50"N, 104°25'25.56"E, 1795 m, near parking lot, Emangou Scenic Area , Lugangtou Village , Xinchengzi Town , Tanchang County, Longnan City, Gansu Province, China, 28 July 2021, K. Liu, Y. Ying & C. Xu GoogleMaps . Paratype 2 ♂, 1 ♀, the same data as holotype GoogleMaps .

Etymology.

The name is taken from the type locality, Emangou Scenic Area; noun in apposition.

Diagnosis.

The males of this species are similar to males of Synagelides zhaoi Peng, Li & Chen, 2003 (see Peng et al. 2003: 249, figs 2-5) in having a thick ventral femoral apophysis in retrolateral view and a golf-club-shaped embolus in ventral view, but differs from it in having (Figs 1C-H View Figure 1 , 2 View Figure 2 ) a triangular tibia (vs saddle-shaped), a forcipate retrolateral tibial apophysis (vs short and horn-shaped), the broad postero-prolateral cymbial apophysis (vs relatively narrow), a C-shaped terminal apophysis (vs S-shaped), and the mastoid tegular in retrolateral view (vs S-shaped). The female resembles S. zhaoi (see Peng et al. 2003: 249, figs 6, 7) in having a nose-shaped median septum and the C-shaped atrial rims, but it can be easily recognized by (Fig. 3C, D View Figure 3 ) the relatively broad, tube-shaped copulatory ducts (vs slender) and the swollen spermathecae (vs relatively thin).

Description.

Male (holotype, sp7-20210728-1, red label). Habitus as in Fig. 1A, B View Figure 1 . Total length 3.59. Carapace 1.70 long, 1.23 wide. Eye sizes and interdistances: AME 0.31; ALE 0.15; PME 0.09; PLE 0.16; AME-AME 0.08; AME-ALE 0.08; PME-PME 0.90; ALE-ALE 1.09; PME-PLE 0.36; PLE-PLE 1.00; ALE-PLE 0.80; AME-PME 0.46; AME-PLE 0.91. MOA: 0.66 long; 0.66 anterior width, 1.02 posterior width. Fovea (Fig. 1A View Figure 1 ) round, hollowed. Chelicerae (Fig. 1B View Figure 1 ) with two promarginal teeth (proximal larger) and one large laminar retromarginal teeth. Sternum (Fig. 1B View Figure 1 ) shield-shaped, longer than wide, posterior end arch-shaped, smooth. Leg measurements: I 4.2 (1.29, 1.03, 1.05, 0.45, 0.38); II 2.62 (0.85, 0.41, 0.54, 0.55, 0.27); III 2.52 (0.74, 0.44, 0.58, 0.52, 0.24); IV 3.89 (1.13, 0.53, 0.95, 0.9, 0.38). Femur width: I 0.50; II 0.26; III 0.27; IV 0.35. Leg spination (Fig. 1A, B View Figure 1 ): I tipv 1-2-1, rv 1-2-1; Met pv 0-1-1, rv 0-1-1. Pedicel 0.11. Abdomen 1.80 long, 1.25 wide.

Coloration (Fig. 1A, B View Figure 1 ). Carapace reddish brown, anterior part darker than posterior, posteriorly with radial grooves and 14-16 rows of short, white setae. Endites yellow, mottled. Labium dark yellow-brown, anteriorly with a single row of strong setae. Sternum, yellow-brown, mottled, with dark brown mottled stripes around margin. Legs: trochanter I yellow-brown, trochanters II-IV yellow, with dark brown stripe; femur I dark yellow-brown, femora II-IV yellow, with distinct prolateral and retrolateral dark brown stripes; patellae, tibiae, and metatarsi yellow, with dark brown lateral stripes; tarsi yellowish, proximal part darker than distal. Abdomen yellow to dark brown, anterior part yellow, mottled, posterior part dark brown with four paler chevron-shaped stripes medially; venter with a U-shaped dark yellow-brown marking postero-medially. Spinnerets yellowish brown, mottled.

Palp (Figs 1C-H View Figure 1 , 2 View Figure 2 ). Femur with a thick, strong tooth-like ventral apophysis. Patella swollen, with a ratio of ca 1.85 between its length and width. Tibia small and narrow with a forcipate stubby retrolateral apophysis, less than 1/2 length of cymbium, with numerous scale-like serrations on apical surface. Cymbium bullet-shaped in dorsal view, with a strong sclerotized postero-retrolateral and a long strong postero-prolateral apophysis. Tegulum broad, C-shaped in ventral view, with a clear mastoid apophysis in retrolateral view. Terminal apophysis arising from antero-retrolateral part of tegulum, strongly sclerotized, C-shaped in retrolateral view, with abundant little scale-like serrations on surface. Embolus golf-club-shaped in ventral view, longer than terminal apophysis, with very broad basal part and whip-shaped apical part.

Female (paratype, sp7-20210728-1, yellow label). Habitus as in Fig. 3A, B View Figure 3 . As in male, except as noted. Total length 3.79. Carapace 1.51 long, 1.16 wide. Eye sizes and interdistances: AME 0.31; ALE 0.18; PME 0.06; PLE 0.21; AME-AME 0.05; AME-ALE 0.08; PME-PME 0.83; ALE-ALE 1.02; PME-PLE 0.32; PLE-PLE 1.00; ALE-PLE 0.67; AME-PME 0.42; AME-PLE 0.66. MOA: 0.66 long; 0.67 anterior width, 0.93 posterior width. Chelicerae (Fig. 3B View Figure 3 ) with two promarginal teeth (slightly separated, proximal larger) and one large triangular retromarginal teeth. Sternum (Fig. 3B View Figure 3 ), posterior end triangular, relatively blunt. Leg measurements: I 3.17 (0.91, 0.76, 0.82, 0.35, 0.33); II2.3 (0.66, 0.34, 0.59, 0.37, 0.34); III 2.4 (0.71, 0.34, 0.52, 0.53, 0.3); IV 3.53 (1, 0.51, 0.89, 0.73, 0.4). Femur width: I 0.31; II 0.20; III 0.21; IV 0.21. Pedicel 0.11. Leg spination (Fig. 3A, B View Figure 3 ): I tipv 2-2-0, rv 2-2-0; Met pv 1-0-1, rv 1-0-1. Pedicel 0.21. Abdomen 2.11 long, 1.44 wide.

Coloration (Fig. 3A, B View Figure 3 ). Darker than male. Ventral abdomen with three broad longitudinal dark brown stripes, posteriorly fusing.

Epigyne (Fig. 3C, D View Figure 3 ). Epigynal plate mask-shaped, with a nose-shaped median septum. Epigynal hood bell-shaped, arising from posterior part of median septum. Atrium relatively large, nearly covering 1/3 of epigynal field. Atrial rims C-shaped, slightly sclerotized, located at bilateral parts of epigyne. Copulatory ducts short, tube-shaped, with a slight curve posteriorly, connecting with submedial part of spermathecae. Glandular appendages very short, near the posterior copulatory ducts. Spermathecae kidney-shaped, swollen, slightly separated. Fertilization ducts relatively long,>2/3 length of spermathecae, transversely extended.

Distribution.

Known only from the type locality in Gansu Province, China (Fig. 13 View Figure 13 ).