dcsimg

Description

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Male. Measurements. Body length 581 (holotype, male), 564–614 (six paratypes, all males); body width 398 (holotype), 381–431 (six paratypes, all males). Integument. Body color brown to yellow-brownish. Body surface microfoveolate (clearly visible under high magnification, ×1000). Lateral podosomal regions with tuberculate cerotegument (diameter of tubercles up to 6). Prodorsum. Rostrum rounded. Lamellar lines (ce) strong, equal to half of prodorsum. Internal ridges (ci) present, very thin, reaching insertions of interlamellar setae. Anterior part of lamellar lines with short lateral ridges (cl), which are located perpendicularly to them. Rostral setae (ro, 69–82) setiform, weakly thickened, with short cilia, set on small tubercles. Lamellar setae (le, 41–45) setiform, thin, slightly barbed. Interlamellar (in) and exobothridial (ex) setae minute (1), poorly visible. Sensilli (ss, 32–36) curved backwards, with short stalk and longer clavate, smooth head. Notogaster. Lenticulus present, with amorphic borders. Notogastral region with 14 pairs of setiform, smooth notogastral setae and one pair of setal alveoli (c3). Setae c1, da (90–102) longer than c2, dm, la, lm (69–82), p1 (30–36), lp, h3 (28–32), dp, h1, h2 (20–24); p1, p2 shortest (4–6). Lyrifissures ia, im, ip, ih and ips and opisthonotal gland openings (gla) distinct, located typically for the genus. Gnathosoma. Subcapitulum longer than wide (118–205 × 143–151). Subcapitular setae setiform, smooth; h (82–86) longer than a and m (both 53–57). Lips only with one spiniform seta (or, 10–12). Palps (123–131) with setation 0–2–1–3–9(+ω). All setae smooth. Solenidion weakly thickened, blunt-ended, pressed to surface of tarsus, not attached with eupathidium. Chelicerae (188–205) with two barbed setae; cha (69–73) longer than chb (45–49). Trägårdh’s organ (Tg) long, conical. Epimeral and lateral podosomal regions. Apodemes 1, 2, 3 and sejugal well developed. Apodemes 2 and sejugal fused medially. Epimeral setal formula 3–1–3–2; setae setiform, smooth. Setae 1b (49–61) longer than 3b (41–49), 1a, 2a, 3a, 3c, 4a, 4c (24–36); 1c shortest (16–20). Pedotecta I (Pd I) of medium size, concave. Anogenital region. Anogenital setae setiform, thin, smooth. Five pairs of genital (g1–g5), one pair of aggenital (ag), two pairs of anal (an1, an2) and the anterior two pairs of adanal (ad2, ad3) setae similar in length (28–32); only the first pair of adanal setae ad1 longer (41–53). Lyrifissures iad located in paraanal position. Legs. Claw of each leg large, smooth. Porose areas developed typically for the genus (Bayartogtokh et al. (2009). Formulae of leg setation and solenidia: I (1–4–2–3–18) [1–2–2], II (1–4–2–3–15) [1–1–2], III (2–3–1–3–15) [1–1–0], IV (1–2–2–3–12) [0–1–0]; homology of setae and solenidia indicated in Table 2. Setae setiform, well or slightly barbed except smooth p on tarsi I, II and s. Famulus (e) short, straight, weakly blunt-ended. All solenidia long setiform, pointed. Leg setation and solenidia of adult Fortuynia smiti sp. n.
Leg Trochanter Femur Genu Tibia Tarsus I v’ d, (l), bv’’ (l), σ (l), v’, φ1, φ2 (ft), (tc), (it), (p), (u), (a), s, (pv), (pl), e, ω1, ω2 II v’ d, (l), bv’’ (l), σ (l), v’, φ (ft), (tc), (it), (p), (u), (a), s, (pv), ω1, ω2 III l’, v’ d, l’, ev’ l’, σ l’, (v), φ (ft), (tc), (it), (p), (u), (a), s, (pv) IV v’ d, ev’ d, l’ l’, (v), φ ft’’, (tc), (p), (u), (a), s, (pv) Roman letters refer to normal setae (e to famulus), Greek letters to solenidia. Single prime (’) marks setae on anterior and double prime (’’) setae on posterior side of the given leg segment. Parentheses refer to a pseudosymmetrical pair of setae.
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Sergey G. Ermilov, Andrei V. Tolstikov, Nathalie Mary, Heinrich Schatz
bibliographic citation
Ermilov S, Tolstikov A, Mary N, Schatz H (2013) Oribatid mites (Acari, Oribatida) from riverine environments of some islands in Oceania ZooKeys 318: 47–57
author
Sergey G. Ermilov
author
Andrei V. Tolstikov
author
Nathalie Mary
author
Heinrich Schatz
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