Lucoppia ankaratraensis, Ermilov K & Frolov K, 2022

Ermilov K, Sergey G. & Frolov K, Andrey V., 2022, A new subgenus and two new species of oribatid mites (Acari, Oribatida) from Madagascar, Acarologia 62 (3), pp. 798-810 : 804-808

Lucoppia ankaratraensis n. sp.

Zoobank: AE6B6891-F377-44BB-BA3B-45861BA3DB81

( Figures 4–6 )

Diagnosis — Body length: 415–481. Notogaster and anogenital region with small foveolae. Rostrum pointed. Rostral, lamellar and interlamellar setae long, setiform, erect, barbed;

ro shortest and thinnest, in longest and thickest; bothridial seta short, globular, roughened. Notogastral setae long, stiff, erect c (, p 1 – p 3 shorter than others). Epimeral, genital and aggenital setae short, setiform, thin, slightly barbed; four pairs of genital setae. Anal and adanal setae short, stiff, thin, slightly barbed. Leg tarsus I with 19 setae l″ (absent).

Description of adult — Measurements – Body length: 415 (holotype, male), 415 (one male paratype); 448–481 (six paratype females); body width: 249 (holotype), 249 (one male paratype); 282–298 (six paratype females).

Integument – Body light brown to brown. Surface covered by layer of dense microgranulate cerotegument. Notogaster and anogenital region sparsely foveolate (diameter of foveola up to 4). Region between costulae with indistinct transverse ridges. Antiaxial side of tarsi I–IV and paraxial side of tarsi I–IV, tibiae I–IV and femora I–IV partially with transverse rugosities.

Prodorsum – Rostrum with triangular projection, pointed. Lamella about 1/4 length of prodorsum, connected by thin, straight or slightly convex medially translamella. Tutorium well developed. Rostral seta (73–82) setiform, barbed, inserted on tubercle; lamellar (98–106) and interlamellar (123–131) setae setiform, erect, barbed, inserted on tubercles; in slightly thicker than le, le slightly thicker than ro ; exobothridial seta (28–36) setiform, thin, slightly barbed; bothridial seta (28–32) globular, roughened. Dorsosejugal porose area oval (12 × 4), located posterior to in.

Notogaster – Anterior margin distinctly convex medially. Fourteen pairs of stiff, erect notogastral setae (c: 41–49; p 1: 49–65; p 2: 45–49; p 3: 41–45; others: 69–77). Porose area Aa elongate oval (24–26 × 8–10); Aa oval (14–16 × 8–10); A1 and A2 rounded (10–16). Opisthonotal gland opening and all lyrifissures well visible.

Gnathosoma – Subcapitulum size: 123–131 × 98–102. Subcapitular (a: 20; m, h: 28–32)

and adoral (10) setae setiform, thin, slightly barbed. Palp (length: 77–86) with typical setation: 0–2–1–3–9(+ω). Postpalpal seta (8) spiniform, roughened. Chelicera (length: 123–131) with two setiform, barbed setae (cha: 36–38; chb: 24–26).

Epimeral and lateral podosomal regions – Epimeral setae 1 (a, 2a, 3a: 16–20; others: 28–32) setiform, thin, slightly barbed; 1c, 3c and 4c slightly thicker than others. Discidium triangular, tubercle-like distally. Circumpedal carina distinct.

Anogenital region – Four pairs of genital setae. Genital (16–20) and aggenital (28–32)

setae setiform, thin, slightly barbed; anal (16–20) and adanal (16–24) setae stiff, thin, slightly barbed. Adanal lyrifissure diagonal. Postanal porose area distinct.

Legs – Median claw clearly thicker than lateral claws; all slightly barbed on dorsal side; lateral claw with tubercle distoventrally. Proximoventral porose area on tarsi I–IV, distoventral porose area on tibiae I–IV and dorsoparaxial porose area on femora I–IV and on trochanters

III, IV distinct. Formulas of leg setation and solenidia: I (1–4–3–4–19) [1–2–2], II (1–5–2–

4–15) [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. Solenidia 1 φof tibia I and φ of tibiae II–IV very long, setiform;

φ of tibia IV swollen distally; σ of genu III short, bacilliform, slightly bent mediodistally; others medium-sized, rod-like. Famulus short, erect, slightly swollen distally, inserted between solenidion ω 2 and seta ft″.

Material examined — Holotype (male) and seven paratypes (one male and six females): Madagascar, Ankaratra Mt. , 19°20′32″S, 47°18′03″E, 1980 m a.s.l., from bushes (swiping), 24.02.2022 (leg. A. V. Frolov).

Type deposition — The holotype is deposited in the collection of the Zoological Institute, Russian Academy of Sciences, Saint-Petersburg, Russia ; seven paratypes are deposited in the collection of the Tyumen State University Museum of Zoology, Tyumen, Russia. All specimens are preserved in 70% solution of ethanol with a drop of glycerol.

Etymology — The name ankaratraensis refers to the place of origin, Ankaratra Mt.

Remarks — Distinctive characters of the new species from the other Lucoppia species can be found in the identification key below.

Figures

Figure 4 Lucoppia ankaratraensisn. sp., adult: a – dorsal view (legs omitted); b – ventral view (gnathosoma and legs omitted); c – lateral view (gnathosoma and legs omitted). Scale bar 120 μm.

Figure 5 Lucoppia ankaratraensisn. sp., adult: a – posterior view; b – subcapitulum, ventral view; c – palp, left, paraxial view; d – chelicera, left, paraxial view. Scale bars 120 μm (a), 25 μm (b–d).

Figure 6 Lucoppia ankaratraensisn. sp., adult: a – leg I, right, antiaxial view; b – leg II, right, antiaxial view; c – leg III, left, antiaxial view; d – leg IV, left, antiaxial view. Scale bar 60 μm.