Diplobodes kanekoi Aoki, 1958

Ermilov, Sergey G., Aoki, Jun-Ichi & Anichkin, Alexander E., 2013, Description of Chistyakovella insolita gen. nov., sp. nov., and redescription of the type species of Diplobodes, D. kanekoi Aoki, 1958 (Acari: Oribatida: Carabodidae), Zootaxa 3608 (3), pp. 178-190 : 186-189

Diplobodes kanekoi Aoki, 1958

( Figures 22–44 )

Diagnosis. Body size 540–730 × 240–415 1. Surface of notogaster and lateral sides of body foveolate Rostral setae weakly phylliform. Lamellar setae thick, covered with strong spines. Interlamellar setae setiform. Sensilli long,

1. Including Aoki’s data (type specimens were smaller: 540–620 × 240–320) (see Aoki 1958).

setiform, with strong spines unilaterally. Tutoria triangular distally. Eight of 15 pairs of notogastral setae inserted on apophyses. Medio-posterior part of notogaster weakly concave. Epimere IV with one pair of tubercles. Genital and anal setae short, aggenital and adanal setae long.

Redescription. Measurements. Body length 581–730 (mean 651; nine specimens); body width 332–415 (mean 354; nine specimens).

FIGURES 33–40. Diplobodes kanekoi Aoki : 33—subcapitulum, left half; 34—palp, without trochanter; 35—chelicera, anterior part; 36—epimeral seta 1b; 37—epimeral seta 4a; 38—genital plate, right; 39—anal plate, right; 40—adanal seta ad 3. Scale bars (33, 35, 38, 39) 20 μm, (34, 36, 37, 40) 10 μm.

Integument ( Figs 22–24 , 26, 31). Body color brown. Surface of prodorsum smooth. Surface of notogaster and lateral sides of body foveolate (diameter of foveolae up to 20).

Prodorsum ( Figs 22, 24 , 25, 27–30). Rostrum rounded. Lamellae wide, located dorso-laterally, with central depression and lateral elevation. Each lamella with transverse ridge dividing lamella into two parts mediodistally. Translamella present, located between distal part of lamellae. Rostral setae (32–36) weakly phylliform, smooth, inserted dorsally on lamellae. Lamellar setae (45–57) thick, covered with strong barbs, inserted laterally on lamellae. Interlamellar setae (36–49) setiform, slightly barbed (visible under high magnification, ×1500), inserted on prodorsum. Sensilli (73–77) longest setae on prodorsum, setiform, thickened, with strong spines unilaterally. Exobothridial setae and their alveoli absent. Tutoria short.

Notogaster ( Figs 22, 24 , 26, 32). Anterior notogastral margin straight or weakly convex. Fifteen pairs of setiform and slightly barbed notogastral setae present (visible under high magnification, ×1500), with no setae closely adjacent. One specimen with an additional notogastral seta adjacent to lp and h 2 on right of notogaster ( Fig. 22 ). Notogaster with apophyses, bearing eight pairs of notogastral setae (c 1, da, dm, dp, la, lm, lp, h 2). One pair of notogastral setae (c 3) inserted adjacent to weakly developed humeral regions. Medio-posterior part of notogaster weakly concave. Lyrifissures and opistonotal gland openings not evident.

Gnathosoma (Figs 33–35). Subcapitulum longer than wide (123–135 × 90–106). Subcapitular setae h (10–12), m (12–16) and a (16–20) setiform, slightly barbed. Adoral setae absent. Palps (73–82) with setation 0–2–1–3–9(+ω). Solenidion long, thickened, blunt-ended, not attached with eupathidium, adpressed to surface of palptarsus. Chelicerae (147–164) with two barbed setae; cha (41–49) longer than chb (16–20). Trägårdh’s organ distinct.

Epimeral and lateral podosomal regions ( Figs 23 , 36, 37). Epimeral setae setiform, slightly barbed (visible under high magnification, ×1500), differing in length: 1b 41–49; 1a, 1c, 2a, 3a 4–6, 3 b, 3c, 4a, 4b, 4c 28–32. Epimere IV with one pair of tubercles (tb), directed posteriorly. Pedotecta I convex; pedotecta II trapezoid. Discidia triangular, blunt distally.

Anogenital region ( Figs 23 , 38–40). Four pairs of genital (16–24) and two pairs of anal (8–12) setae setiform, smooth. One pair of aggenital (20) and three pairs of adanal setae (28–32) setiform, slightly barbed. The longitudinal ridges are presented laterally to genital and anal plates. Lyrifissures iad not evident.

Legs ( Figs 41–44 ). Leg claws with tooth ventrally. Femora I and II with two ventral tubercles (tb). Formulae of leg setation and solenidia: I (1–4–3–4–16) [1–2–2], II (1–4–3–3–15) [1–1–2], III (2–3–1–2–15) [1–1–0], IV (1–2–2–2–11) [0–1–0]; homology of setae and solenidia indicated in Table 2 . Famulus short, stick-like, bluntended. Setae u attenuate, scale-like; other setae setiform (rarely widely lanceolate), many barbed. Solenidia bluntended.

See Table 1 for explanations.

Figures

FIGURES 22 – 24. Diplobodes kanekoi Aoki: 22 — dorsal view; 23 — ventral view, gnathosomal setae and legs (except basal parts) not shown; 24 — lateral view, gnathosomal, epimeral and anogenital setae, discidium and legs (except basal parts of legs III, IV) not shown. Scale bar 200 μm.

FIGURES 41 – 44. Diplobodes kanekoi Aoki: 41 — leg I, without trochanter, right, antiaxial view; 42 — leg II, right, antiaxial view; 43 — leg III, left, antiaxial view; 44 — leg IV, right, antiaxial view. Scale bars 50 μm.

Tables

TABLE 2. Leg setation and solenidia of Diplobodes kanekoi Aoki.

Leg	Trochanter	Femur	Genu	Tibia	Tarsus
I	v'	d, (l), bv''	(l), v', σ	(l), (v), φ1, φ2	(ft), (tc), (it), (p), (u), (a), s, (pv), e, ω1, ω2
II	v'	d, (l), bv''	(l), v', σ	l', (v), φ	(ft), (tc), (it), (p), (u), (a), s, (pv), ω1, ω2
III	l', v'	d, l', ev'	l', σ	(v), φ	(ft), (tc), (it), (p), (u), (a), s, (pv)
IV	v'	d, ev'	d, l'	(v), φ	ft'', (tc), (p), (u), (a), s, pv'