Bischofius lineatus Liang & Xue, 2025, sp. nov.

Bischofius lineatus sp. nov. (Figs 4–5) Description. Female (n = 10): Body fusiform, 160 (130–180), 55 (55–75) wide, 50 (50–60) thick; light yellow. Gnathosoma. 22 (22–25), projecting downwards, cheliceral stylets 20 (20–23), pedipalp coxal setae ep 3*, dorsal pedipalp genual setae d 6 (6–8), palp tarsal ventral setae (v) absent. Prodorsal shield. 46 (35–47) long, 63 (47–70) wide; median and admedian lines complete, connected by three transverse lines, forming 8 cells in the median region, another 8 cells in anterior and lateral margin of prodorsal shield. Scapular tubercles 35 (30–40) apart, scapular setae sc 7 (5–10), directed centrad. Coxisternal setae 1b 5 (4–6) and 12 (12–13) apart, 1a 7 (6–10) and 10 (9–11) apart, 2a 23 (20–30) and 27 (27–30) apart; prosternal apodeme 7 (6–8) long. Coxigenital region with 5 semiannuli between coxae and external genitalia. Legs. Leg I 25 (22–26), femur 11 (10–11), basiventral femoral setae bv 6 (6–7); genu 3 (3–4), antaxial genual setae l’’ 25 (24–30); tibia 4 (3–4), paraxial tibial setae l’ absent; tarsus 6 (6–7), paraxial fastigial tarsal setae ft’ 13 (13–16), antaxial fastigial tarsal setae ft’’ 20 (18–21); seta u’ 4*, tarsal empodium em 4 (4–5) long and 4-rayed, tarsal solenidion ω 5 (5–6), unknobbed. Leg ІІ 24 (23–25), femur 10 (10–11), basiventral femoral setae bv 14 (14–15); genu 3 (3–4), l’’ 11 (10–12); tibia 3*; tarsus 6 (5–6), setae ft’ 4 (4–5), setae ft’’ 20 (20–22); seta u’ 4 (3–4), tarsal empodium em 4 (4–5) and 4-rayed, tarsal solenidion ω 7 (6–7), unknobbed. Opisthosoma. Opisthosoma dorsally with 40 (38–41) annuli, smooth; with a middorsal ridge; ventrally with 45 (42–52) semiannuli, with elliptical or linear microtubercles. Setae c2 28 (23–38) on ventral semiannulus 6 (5–6), 50 (45–60) apart; setae d 50 (50–63) on ventral semiannulus 15 (15–16), 33 (25–35) apart; setae e 7 (5–8), on ventral semiannulus 23 (23–25), 16 (15–17) apart; setae f 18 (15–20), on 7th ventral semiannulus from rear, 23 (20–24) apart; setae h1 2 (1–2), setae h2 55 (55–57). External genitalia. 15 (14–16) long, 23 (20–25) wide, coverflap with two rows of irregular longitudinal lines, setae 3a 7 (6–8), 17 (15–18) apart. Internal genitalia. Spermathecae sub-quadrangularovoid, oriented posterolaterad; spermathecal tubes normal, relatively short; transverse genital apodeme trapezoidal, distally folded. Male: Unknown. Material examined. Holotype. female (NJAUAQ328.1), China: Hainan province, Haikou, Shishan Volcano Cluster National Geopark, 19°55′54′′N, 110°13′06′′E, elevation 140 m. May 29, 2019, from Catunaregam spinosa (Thunb.) Tirveng. (Rubiaceae), coll. Xue, Xiao-Feng. Paratypes. nine females on nine slides (NJAUAQ328.2–9), with the same data as holotype. Relation to the plant host. Vagrant on lower leaf surface. No apparent damage to the host plant was observed. Etymology. The specific designation lineatus is latin adjective for “striate”, referred to the female genital coverflap with irregular longitudinal ridge lines, masculine in gender. Differential diagnosis. The new species shares several morphological features with Bischofius kanchanaburi Boczek &Chandrapatya, 2000,including ornamentation pattern of prodorsal shield,opisthosoma semiannuli subequal dorsoventrally. However, it can be differentiated by tarsal empodium 4-rayed (em 5-rayed in B. kanchanaburi) and female genital coverflap with irregular longitudinal ridges (coverflap with numerous granules in B. kanchanaburi). While, compared to B. anthocephali, the new species can be differentiated by coxal I region smooth or with few broken lines (coxal I region with granules in B. anthocephali) and median line complete, intersected with three transverse lines, forming 8 cells in the central region (median lines incomplete, intersected with two transverse lines, forming 4 cells in the central region in B. anthocephali).