Armascirus kuandianensis Chen & Jin 2026, sp. nov.

Armascirus kuandianensis Chen & Jin sp. nov. Figs 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 Diagnosis. Female. Proterosomal and hysterosomal (median) shield present; palp telofemur with one apophysis; subcapitulum with papillae, area lateral to hg 3 and hg 4 with reticulations; coxae I – IV with reticulations; propodogastral setae (ppgs) on small platelets. Description. Female (n = 3). Idiosoma 755 (755–760) long, 477 (477–537) wide. Dorsum (Figs 1, 3–5). Proterosomal shield 186 (186–190) long, 219 (219–272) wide, and covered with reticulations, bearing two pairs of trichobothria (at and pt), two pairs of tactile setae (lps and mps), lps closer to pt, and pt longer than at. Hysterosomal (median) shield inverted triangle 63 (63–74) long, 84 (84–98) wide, and covered with reticulations, one pair of small lateral plates 51 (51–58) long, 13 (13–16) wide, and also covered with reticulations; except for median shield and lateral plates, hysterosomal dorsum soft and striated, area between proterosomal shield and median shield transverse striae, lateral area outside median shield with lengthwise striation, area between median shield and h 1 with transverse striae; and with seven pairs of simple setae (c 1, c 2, d 1, e 1, f 1, h 1, and h 2) and one pair of lyrifissures (im) situated anterolaterally to f 1. Setal lengths and distances: at 405 (355–405), pt 559 (530–559), lps 18 (16–18), mps 18 (16–18), c 1 16 (12–16), c 2 14 (14–14), d 1 15 (14–15), e 1 13 (13–16), f 1 46 (43–46), h 1 50 (50–51), 32 (30–39); at – at 35 (33–35), pt – pt 239 (239–253), lps – lps 212 (212–221), mps – mps 127 (127–133), lps – mps 73 (73–80), at – lps 138 (138–138), pt – mps 72 (72–75), pt – lps 35 (34–35), at – mps 156 (150–156), at – pt 173 (170–173), c 1 – c 1 75 (75–96), c 2 – c 2 234 (234–253), d 1 – d 1 73 (73–108), e 1 – e 1 62 (62–109), f 1 – f 1 77 (77–103), h 1 – h 1 47 (47–55), c 1 – c 2 88 (88–144), c 1 – d 1 64 (64–87), c 2 – d 1 85 (85–150), d 1 – e 1 72 (72–93), e 1 – f 1 80 (80–111), f 1 – h 1 49 (49–58). Venter (Figs 2, 6–7). Ventral area between coxae I and gnathosoma with transverse striae. Coxae I – II with reticulations and papillae, whereas coxae III – IV only with reticulations; centrally, between coxae I – IV plates with longitudinal striae anterior to hgs 1; areas between hgs 1 and genital plates with transverse striae and outside with lengthwise striation. Setal formula of coxal plates I – IV: 3 (1 a – c) - 2 (2 b – c) - 3 (3 a – c) - 3 (4 a – c) sts; one pair of propodogastral setae (ppgs) 23 (23–25) in length and present on small platelets that with dot-like papillae, five pairs of hysterogastral setae (hgs 1 – hgs 5), 33 (31–33), 35 (33–35), 53 (43–53), 36 (36–50) and 51 (48–51) in length, respectively. Genital plates with papillae and reticulations, two pairs of visible genital papillae and four pairs of genital setae (g 1 – g 4) that 32 (32–33), 36 (36–36), 40 (38–40) and 42 (39–42) in length, respectively. Anal region with two pairs of pseudanal setae (ps 1 – ps 2), 21 (14–21) and 32 (28–32) in length, respectively, and one pair of lyrifissures (ih) close to ps 2. Gnathosoma (Figs 8, 9, 10). Palp (Figs 8, 9, 10). Five-segmented, 436 (425–436) long, all segments with papillae. Palp chaetotaxy: trochanter none; basifemur with one simple seta; telofemur with one spine-like seta and one apophysis; genu with one simple seta, three spine-like setae (one of which is stout near inner base) and one elongate pointed apophysis; tibiotarsus one spine-like seta, three simple setae (one longer near inner base) and one distal solenidion; claw well developed. Chelicera (Fig. 11). 282 (282–282) long, covered by reticulations; cheliceral seta 21 (21–24) in length; chela developed. Subcapitulum (Fig. 12). 322 (322–324) long, 158 (141–158) wide and with papillae, area lateral to hg 3 and hg 4 with reticulations; two pairs of short adoral setae, ads 1 – ads 2, 20 (20–23) and 6 (6–9) in length; four pairs of hypostomal setae, hg 1 – hg 4, 31 (31–31), 38 (38–40), 15 (15–18) and 89 (88–89) in length, respectively. Distances of hg setae: hg 1 – hg 1 8 (7–8), hg 2 – hg 2 19 (19–20), hg 3 – hg 3 38 (38–39), hg 4 – hg 4 109 (105–117), hg 1 – hg 2 62 (62–76), hg 2 – hg 3 153 (153–168), hg 3 – hg 4 51 (48–51). Legs (Figs 13–16). With reticulations, lengths of leg I – IV: 474 (474–507), 404 (404–466), 509 (509–524), 559 (541–559); lengths of tarsus I – IV: 192 (179–195), 172 (167–180), 207 (194–207), 206 (197–210). T on tibia IV 111 (110–112) in length. Legs I – IV chaetotaxy: coxae I – IV 3-2 - 3 - 3 sts; trochanters I – IV 1-1 - 2 - 1 sts; basifemora I – IV 5-5 - 4 - 2 sts; telofemora I – IV 4-4 - 4 - 4 sts. Genu I 4 asl, 4 sts; genu II 2 asl, 5 sts; genu III 1 asl, 5 sts; genu IV 2 asl, 5 sts. Tibia I 1 asl, {1 asl, 1 mst}, 4 sts; tibia II 1 asl, 5 sts; tibia III 1 bsl, 5 sts; tibia IV 1 smooth T, 4 sts. Tarsus I 4 asl, 1 fam, 1 dtsl, 20 sts; tarsus II 1 bsl, 1 dtsl, 19 sts; tarsus III 1 dtsl, 19 sts; tarsus IV 1 dtsl, 18 sts. Other developmental stages. Unknown. Etymology. The name of this new species is derived from the name of the county in which the type locality is located: Kuandian County. Remarks. The new species resembles A. cerris Kalúz, 2009 (adult female) with having hysterosomal median shield and one pair of small lateral platelets, and palp telofemur only with one apophysis. However, it can be distinguished from A. cerris by the following characteristics: (1) two pairs of genital papillae (vs three in A. cerris); (2) coxae I – II with reticulations and papillae, coxae III – IV only with reticulations (vs coxae I – II and III – IV contiguous and smooth in A. cerris); (3) one pair of propodogastral setae (ppgs) present on small platelets (vs integument in A. cerris). Material examined. Holotype: China • 1 ♀ (slide no. LN-CU-2010080101) Hekou Village, Changtian Town, Kuandian County, Dandong City, Liaoning Province; 40°29'6"N, 124°48'49"E; 102 m a. s. l.; 1 August. 2010; collected from fallen leaves by Li-Xia Xie, Da-Xing Yang, Rong Huang and Bin Li. Paratypes: China • 2 ♀ (LN-CU-2010080102 – LN-CU-2010080103), the same data as for holotype. Distribution. Known only from the type locality.