Eutarsopolipus raveni, Seeman, 2021

Seeman, Owen D., 2021, Contrasting species diversification of Eutarsopolipus (Acariformes: Podapolipidae) on Castelnaudia and Notonomus (Coleoptera: Carabidae), Zootaxa 4971 (1), pp. 1-74 : 29-34

Eutarsopolipus raveni sp. nov.

( Figs 17–20 )

Diagnosis. Adult female: Gnathosomal length 58–60, width 48–50; anterior margin of prodorsal shield eroded medially; v1 7–10, sc1 13–16, c1 15–20, c2 19–23, d 17–23, f 14–20, h 2–4, v1-v1 40–46, d-d 115–125, f-f 115–125; genua II-III setae l′ 2–3, tibia I seta l′ 4–5, tarsi II-III setae tc′′ 5–6, pv′′ 3–4. Larval female: Gnathosomal length 45–50, width 38–41; idiosomal length 195–230; c1 7–11 and c2 7–10 subequal, v1–v1 30–33, sc1–sc1 57–62, c1–c1 44–54, d–d 55–67; genua II-III setae l′ m–2, tibia I seta l′ 6–9, tarsi II-III setae tc′ 2–3, tc′′ 4–5, pv′′ 2–3.

Material examined. Holotype, female, ex. Castelnaudia septemcostata . Mt Cougal , shelf, 28° 14ʹ 10ʺ S 152° 19ʹ 34ʺ E, 19 Nov 1987 - 17 Mar 1988, D. Cook & G. Monteith, pitfall trap, rainforest, IN6062, HR# T 64265 ( QMS 113019 ). In QM . Paratypes. All ex. C. septemcostata . 4 females, 6 males, 14 larvae, as follows. 1 female, 2 larvae, same data as holotype ( QMS 113027-28 , ZMH-A0015191 ); 1 female, O’Reilly’s Guesthouse , 28° 14ʹ 08ʺ S 152° 08ʹ 12ʺ E, 1-31 Dec 1909, H. Hacker, IN7977, HR# T 88472 ( QMS 113020 ); 1 female, 1 male, 3 larvae, Tweed Lookout, Wiangaree , 28° 23ʹ 14ʺ S 153° 6ʹ 33ʺ E, 16 Nov-27 Dec 1974, G. & S. R . Monteith, pitfall trap, rainforest, IN5349, HR# T 57316 ( QMS 113024 , 113029-30 , ANIC 52-003959 ); 1 female, 5 males, 6 larvae, Rotary Park, Lismore , 28° 48ʹ 37ʺ S 153° 17ʹ 43ʺ E, 16 Nov-26 Dec 1974, G. & S. R . Monteith, pitfall trap, rainforest, IN5415, HR# T 57330 ( QMS 113021-23 , 25-26 , 31-32 , ANIC 52-003960 – 61 , ZMH-A0015192 ); 1 larva, same data as holotype except 18 Jan-27 Apr 1987, IN6056, HR# T 64261 ; 1 larva, Upper Tallebudgera Creek , 28° 14ʹ 10ʺ S 152° 19ʹ 34ʺ E, 19 Nov 1987 - 17 Mar 1988, D. Cook & G. Monteith, pitfall trap, rainforest, IN6062, HR# T 64272 ( QMS113034 ); 1 larva, Bar Mountain, Wiangaree , 28° 27ʹ 37ʺ S 153° 8ʹ 2ʺ E, 11 Oct 1977 - 2 Oct 1978, IN5624, G & S. R . Monteith, pitfall trap, rainforest, IN5624, HR# T 57344 ( QMS113033 ). All in QM except 1 female, 1 male, 1 larva in ANIC ; 1 male, 1 larva in ZMH .

Description. FEMALE ( Figs 17–18 ; n = 5).

Gnathosoma . Length 58 (58–60), width 48 (46–50). Cheliceral stylets 68 (68–72), setae ch 22 (24–27), su 13 (10–11).

Idiosoma ( Fig. 17 ). Length 335 (325–480), width 240 (255–320). Prodorsal plate eroded anteriorly; setae slender, v1 9 (7–10), v2 alveolar remnant, sc1 16 (13–16), sc2 85 (85–90). Distance between setae v1–v1 46 (40–51), sc1–sc1 79 (78–96), v1–sc1 25 (23–27), v2–v2 48 (44–58), sc2–sc2 105 (110–125), sc1–sc2 25 (23–27). Opisthosomal setae slender. Plate C setae c1 16 (15–20), c2 23 (19–23), distance between setae c1–c1 71 (73–92). Plate D setae d 21 (17–23), d–d 125 (115–125), cupuli ia laterad to anterolaterad d. Plate EF setae f 16 (14–20), f–f 125 (115–125), cupuli im anterolaterad f. Plate H fused weakly, seta h 2 (3–4). Venter: coxisterna 1-2 well defined, coxisterna 3 weakly defined; coxal setae slender, 1a 3 (3–4), 2a 5 (5–7), 3a 6 (4–7), 3b 6 (6–7). Alveoli of 1b, 2b present.

Legs ( Fig. 18 ). Setal counts legs I–III, femur-tarsus: 3-2-6(+ φ)-8(+ ω), 0-1-4-6, 0-1-4-6. Leg I. Femur I, d minute, l’ 2 (2–3), v″ 8 (10–16); genu I, l′ 2 (2), l″ 2 (2); tibia I, d 70 (60–65), l’ 5 (4–5), l’’ 8 (6–9), v’ 4 (3–4), v’’ 10 (8–10), k 5 (4), φ 9 (8–10); tarsus I, tc’ 14 (15–17), tc’’ 14 (13–17), pl’ 11 (11–14), pl’’ 19 (14–17), pv′ 2 (2), pv’’ 2 (2), ω 3 (3–4), s 6 (5–6), u′′ m (m–2). Leg II. Genu II, l′ 2 (2); tibia II, d 35 (30–40), l’ 5 (4–5), v’ 11 (8–12), v’’ 20 (14–17); tarsus II, tc′ 3 (2–3), tc ″ 5 (5), pl ″ 58 (45–46), pv’’ 3 (3–4), u’ 7 (7), u′′ 2 (m–2). Leg III. Genu III, l′ 2 (2–3); tibia III, d 40 (33–39), l’ 6 (5), v’ 12 (10–12), v’’ 24 (15–17); tarsus III, tc’ 2 (2), tc ″ 5 (5–6), pl ″ 55 (45–50), pv’’ 2 (2–3), u’ 7 (6–7), u′′ m (m–2).

LARVIFORM ADULT MALE ( Fig. 19 ; n = 6).

Gnathosoma . Length 31–35, width 29–29. Cheliceral stylets 21–25, setae ch 7–9, su 6–7.

Idiosoma ( Fig. 19 ). Length 145–180, width 105–130. Prodorsal plate with setae v1 4, v2 alveolar remnant, sc1 4–6, sc2 45–50. Distance between setae v1–v1 18–21, sc1–sc1 41–45, v1–sc1 14–19, v2–v2 19–23, sc2–sc2 51–60, sc1–sc2 18–27. Plate CD setae c1 5–6, c2 5–6, d 5–6, distance between setae c1–c1 45–53, c1–c2 25–33, d–d 37–48; cupuli ia not seen or absent. Plate EF eroded posteromedially; with setae f 3–4, distance f–f 24–30; cupuli im anterolaterad to laterad setae f. Genital capsule length 25–30, width 28–30, setae h minute. Venter: coxal setae 1a 2–3, 2a 3–4, 3a 3–4, 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. Leg I. Femur I, d minute, l′ minute, v″ 5–6 (asymmetrical absence on drawn specimen); genu I l′ m–2, l″ m–2; tibia I, d 36–42, l’ 2, l’’ 3–4, v’ 3–4, v’’ 6–7, k 3, φ 7–8; tarsus I, tc’ 12–14, tc’’ 13–14, pl’ 6–7, pl’’ 11–13, pv ′ m–2, pv’’ 2, ω 2, s 4–5, u ′′ m. Leg II. Genu II, l′ m–2; tibia II, d 23–29, l’ 4, v’ 7–10, v’’ 14–16; tarsus II, tc′ m–2, tc ″ 4–5, pl ″ 24–34, pv’’ 3, u’ 5–6, u″ minute. Leg III. Genu III, l′ 2; tibia III, d 19–24, l’ 4–5, v’ 7–12, v’’ 10–15; tarsus III, tc′ minute, tc ″ 4–5, pl ″ 23–29, pv’’ 2, u’ 5–6, u″ minute.

LARVAL FEMALE ( Fig. 20 ; n = 14).

Gnathosoma . Length 45–50, width 38–41. Cheliceral stylets 57–63, setae ch 22–33, su 5–9.

Idiosoma ( Fig. 20 ). Length 195–230, width 140–190. Prodorsal plate with setae v1 5–6, v2 alveolar remnant, sc1 6–7, sc2 80–95. Distance between setae v1–v1 30–33, sc1–sc1 57–62, v1–sc1 19–22, v2–v2 31–36, sc2–sc2 68–79, sc1–sc2 27–33. Plate C setae c1 7–11, c2 7–10, distance between setae c1–c1 44–54. Plate D setae d 9–12, d–d 55–67, cupuli ia very close to setae d, anteriad to anterolaterad d. Plate EF setae f 7–13, f–f 44–51, cupuli im close to setae f, anteriad to anterolaterad f. Plate H 20–22 wide, 23–26 long, bearing setae h1 ca. 120, h2 7–9. Venter: coxisterna 1-2 well defined, coxisterna 3 with some folds; coxal setae slender, 1a 2–3, 2a 3–4, 3a 4–5, 3b 4–5. Alveoli of 1b, 2b present.

Legs. Setal counts legs I–III, femur-tarsus: 3-2-6(+ φ)-8(+ ω), 0-1-4-6, 0-1-4-6. Leg I. Femur I, d minute, l′ minute, v″ 6–9; genu I, l′ minute, l″ m–2; tibia I, d 45–61, l’ 6–9, l’’ 8–10, v’ 3–4, v’’ 5–8, k 4–5, φ 8–10; tarsus I, tc’ 13–15, tc’’ 14–15, pl’ 6–7, pl’’ 14–20, pv′ m–2, pv’’ 2, ω 2–3, s 5, u′′ minute. Leg II. Genu II, l′ m–2; tibia II, d 29–39, l’ 5–6, v’ 8–12, v’’ 17–22; tarsus II, tc′ 2, tc ″ 4, pl ″ 31–38, pv’’ 2–3, u’ 5–6, u′′ m–2. Leg III. Genu III, l′ m–2; tibia III, d 25–36, l’ 4–5, v’ 8–11, v’’ 15–18; tarsus III, tc’ m–2, tc ″ 4–5, pl ″ 27–37, pv’’ 2–3, u’ 5–6, u′′ m–2.

Differential diagnosis. Eutarsopolipus raveni sp. nov. shares the same host as E. nahmani but is a much smaller species and is instead closer to E. teuceri . See the differential diagnosis of E. teuceri for differences.

Etymology. It is with great pleasure that I name this species for Robert Raven, Curator of Arachnida at the Queensland Museum, and a friend and superb arachnologist, who has given great support to the development of acarology at the Queensland Museum.

Figures

FIGURE 17. Eutarsopolipus raveni sp. nov. Female, dorsum.

FIGURE 18. Eutarsopolipus raveni sp. nov. Female, legs I-III (A-C), left side, dorsal view; leg III basifemur not shown.

FIGURE 19. Eutarsopolipus raveni sp. nov. Male, dorsum.

FIGURE 20. Eutarsopolipus raveni sp. nov. Larva, dorsum.