Eutarsopolipus labiatus Seeman 2021, sp. nov.
Creators: name: Seeman, Owen D.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Prostigmata
Podapolipidae
Eutarsopolipus
Eutarsopolipus labiatus

description: Eutarsopolipus labiatus sp. nov.
(Figs 29, 32–36)
Diagnosis. Adult female: sc1 15–19, c1 20–22, c2 21–24, d 20–24, f 10–16, v2-v2 57–64, sc1-sc1 84-92, d-d 135– 150, f-f 100–120; genua II-III setae l′ 2–3, tibia I setae l′ 7–8, v′ 3–4, tarsi II-III setae tc′′ 4–5. Adult male: leg I with one claw; c1 7–12, c2 8–10, v2-v2 34–40; tarsi II-III setae tc″ 3–4. Larval female: c1 15–18, c2 19–24, d 17 – 19, f 11–15, sc2–sc2 83–100, v1-sc1 22–28; tarsi II-III setae tc′′ 3–4.
Material examined. Holotype female, ex. Castelnaudia marginifera. Mt Mistake Plateau, via Goomburra, 27° 58ʹ 37ʺ S 152° 22ʹ 58ʺ E, 17-22 Nov 1987, G. Monteith, rainforest, IN6919, HR# T 88508 (QMS 113432). Paratypes. All ex. C. marginifera. 27 females, 10 males, 11 larvae, as follows: 6 females, 2 males, 2 larvae, same data as holotype (QMS 113433–39); 8 females, 4 males, Bald Mtn area, via Emu Vale, 28° 13ʹ 57ʺ S 152° 24ʹ 54ʺ E, 26 Jan-30 Jan 1973, G. Monteith, IN9131, HR# T 88513 (QMS 113440–49, ANIC 52-003969); 13 females, 4 males, 9 larvae, Lever’s Plateau, 28° 18ʹ 57ʺ S 152° 50ʹ 53ʺ E, 29 Feb-11 Apr 1992, D. Cook, pitfall trap, rainforest, IN5139, HR# T 64339 (QMS 113450–62, ANIC 52-003970 – 71, ZMH-A0015196–98). All in QM except 1 female, 1 male, 1 larva in ANIC and ZMH.
Other material examined. 1 pharate female, same data as holotype.
Description. FEMALE (Figs 29, 32–33; n = 27, 7 measured).
Gnathosoma (Fig. 29E). Length 49 (47–51), width 42 (41–43), apex indented, terminating in small but distinct lobes. Cheliceral stylets 41 (40–45), setae ch 17 (17–21), su 10 (7–12).
Idiosoma (Figs 32–33). Length 305 (300–370) width 235 (265–300). Prodorsal plate not eroded anteriorly; setae slender, v1 7 (7–10), v2 alveolar remnant, sc1 asymmetrical lengths, 17 and 12 (15–19, not asymmetrical), sc2 80 (75–84). Distance between setae v1–v1 45 (43–48), sc1–sc1 88 (85–92), v1–sc1 24 (27–33), v2–v2 57 (58–64), sc2– sc2 150 (140–155), sc1–sc2 48 (38–48). Opisthosomal setae slender. Plate C setae c1 21 (20–22), c2 22 (21–24), distance between setae c1–c1 83 (72–97). Plate D setae d 20 (21–24), d–d 140 (135–150), cupuli ia anterolaterad d. Plate EF setae f 11 (10–16), f–f 110 (100–120), cupuli im anteriad to anterolaterad f. Plate H divided, seta h minute. Venter: coxisterna 1-2 moderately well defined, with few folds, coxisterna 3 defined but membranous; coxal setae slender, 1a 3 (3), 2a 5 (4–5), 3a 6 (6–7), 3b 6 (6–7). Alveoli of 1b, 2b present.
Legs (Figs 33 B-D). Setal counts legs I–III, femur-tarsus: 3-2-6(+ φ)-8(+ ω), 0-1-4-6, 0-1-4-6. Ranges given only when holotype measurement different from E. basiatus. Leg I. Femur I, d minute, l’ 2, v″ 6 (5–8); genu I, l′ 2, l″ 2; tibia I, d 45 (40–50), l’ 8 (7–8), l’’ 14 (10–12), v’ 4 (3–4), v’’ 16, k 4 (4–5), φ 11 (10–11); tarsus I, tc’ 14, tc’’ 15, pl’ 10, pl’’ 19, pv′ 2 (m–2), pv’’ 2, ω 4, s 5, u′′ m (m). Leg II. Genu II, l′ 3; tibia II, d 40, l’ 7, v’ 13 (13–15), v’’ 40 (35–40); tarsus II, tc′ 2, tc ″ 5 (4–5), pl ″ 40, pv’’ 2, u’ 7 (6–7), u′′ minute. Leg III. Genu III, l′ 2 (2); tibia III, d 35, l’ 5, v’ 18, v’’ 21; tarsus III, tc’ 2 (2), tc ″ 5 (4–5), pl ″ 30, pv’’ 2, u’ 7 (6–7), u′′ minute.
LARVIFORM ADULT MALE (Fig. 34; n = 10, 5 measured).
Gnathosoma. Length 31–33, width 29–30, apex indented, terminating in small but distinct lobes; pharynx distorted in drawn specimen. Cheliceral stylets 20–23, ch 5–6, su 4–5.
Idiosoma. Length 180–200, width 145–175. Prodorsal plate with setae v1 3–5, v2 alveolar remnant, sc1 5–7, sc2 50–65. Distance between setae v1–v1 28–32, sc1–sc1 47–53, v1–sc1 17–22 (asymmetry in one specimen, 11/19), v2–v2 34–40, sc2–sc2 69–78, sc1–sc2 16–25 (one asymmetrical specimen 32/25). Plate CD setae c1 7–12, c2 8–10, d 6–10 (asymmetrical in one specimen, 7/13), distance between setae c1–c1 48–57, c1–c2 34–42 (asymmetrical in one specimen, 25/39), d–d 44–53; cupuli ia anterolaterad setae d. Plate EF slightly eroded medially; with setae f 4–5, distance f–f 26–32; cupuli im anterolaterad setae f. Genital capsule length 28–29, width 38–42, setae h minute. Venter: coxal setae 1a 3, 2a 4–5, 3a 2–3, 3b 4–5.
Legs. Setal counts legs I–III, femur-tarsus: 3-2-6(+ φ)-8(+ ω), 0-1-4-6, 0-1-4-6. Ranges given only when first measurement different from E. basiatus. Leg I. Femur I, d minute, l′ minute, v″ 4–6; genu I l′ m–2, l″ m–2; tibia I, d 45, l’ m–2, l’’ m–2, v ’ 4–5, v ’’ 9–14, k 3, φ 8; tarsus I, tc’ 13–14, tc’’ 13–14, pl’ 10–11, pl’’ 12, pv ′ m–2, pv’’ m–2, ω 2–3, s 4–5, u ′′ minute. Leg II. Genu II, l′ 2; tibia II, d 21–30, l’ 6–7, v’ 14, v’’ 16; tarsus II, tc′ 2, tc ″ 3–4, pl ″ 26, pv’’ 2, u’ 5, u″ minute. Leg III. Genu III, l′ minute; tibia III, d 19, l’ 5–6, v’ 14, v’’ 14–18; tarsus III, tc′ 2, tc ″ 3–4, pl ″ 26, pv’’ 2, u’ 5, u′′ minute.
LARVAL FEMALE (Figs 35–36; n = 11, 5 measured).
Gnathosoma. Length 42–44, width 37–40, apex indented, terminating in small but distinct lobes. Cheliceral stylets 36–43, setae ch 20–24, su 5–9.
Idiosoma (Fig. 35). Length 220–265, width 155–205. Prodorsal plate with setae v1 5–7, v2 alveolar remnant, sc1 6–8, sc2 75–100. Distance between setae v1–v1 36–46, sc1–sc1 66–81, v1–sc1 22–28 (asymmetrical in one specimen: v2 and sc1 reversed in position), v2–v2 48–64, sc2–sc2 83–100, sc1–sc2 28–32. Plate C setae c1 15–18, c2 19–24, distance between setae c1–c1 49–60. Plate D setae d 17–19, d–d 60–80, cupuli ia closely anteriad to anterolaterad setae d. Plate EF setae f 11–15, f–f 46–64, cupuli im anteriad to anterolaterad f. Plate H narrow, large, 20–24 wide, 34–42 long, bearing setae h1 ca. 170, h2 10–17. Venter: coxisterna 1-2 moderately well defined, with some folds, coxisterna 3 membranous; coxal setae slender, 1a 2–3, 2a 4–5, 3a 4–5, 3b 5–6. Alveoli of 1b, 2b present.
Legs (Fig. 36). Setal counts legs I–III, femur-tarsus: 3-2-6(+ φ)-8(+ ω), 0-1-4-6, 0-1-4-6. Ranges given only when first measurement different from E. basiatus. Leg I. Femur I, d minute, l′ minute, v″ 4–6; genu I, l′ m–2, l″ m–2; tibia I, d 50–60, l’ 8–12, l’’ 7–12, v’ 6–7, v’’ 11–15, k 4, φ 10; tarsus I, tc’ 12–14, tc’’ 13–14, pl’ 10, pl’’ 15–19, pv′ minute, pv’’ m–2, ω 3–4, s 5, u′′ minute. Leg II. Genu II, l′ m–2; tibia II, d 35, l’ 7, v’ 12–17, v’’ 19; tarsus II, tc′ 2–3, tc ″ 3–4, pl ″ 30, pv’’ 2, u’ 5, u′′ minute. Leg III. Genu III, l′ minute; tibia III, d 28–34, l’ 7, v’ 16, v’’ 18–25; tarsus III, tc’ 2, tc ″ 3–4, pl ″ 27–36, pv’’ 2, u’ 5–6, u′′ minute.
Differential diagnosis. Eutarsopolipus labiatus sp. nov. is most similar to E. savatus sp. nov. by sharing long setae sc1 (exceeding 10) and greater distance d-d (135–150) and f-f (100–120). Females are very similar and differ by the shorter cheliceral seta (17–21 versus 24–39) and slightly longer idiosomal setae. The idiosomal setal lengths are however more distinctive in the larvae: c1 15–18, c2 19–24, d 17–19 in E. labiatus versus c1 6–9, c2 9–12, d 7–10 in E. savatus.
Etymology. The specific name labiatus (lipped) refers to the protruding lip-like gnathosoma found in this species group.
description: Published as part of Seeman, Owen D., 2021, Contrasting species diversification of Eutarsopolipus (Acariformes: Podapolipidae) on Castelnaudia and Notonomus (Coleoptera: Carabidae), pp. 1-74 in Zootaxa 4971 (1) on pages 48-53, DOI: 10.11646/zootaxa.4971.1.1, http://zenodo.org/record/4771514