Cubachipteria pianmaensis, Tang & Yang & Liang, 2015

Tang, Qiu-Xiao, Yang, Mao-Fa & Liang, Wen-Qin, 2015, First record of Cubachipteria (Acari: Oribatida: Achipteriidae) in China, with descriptions of two new species, Zoological Systematics 40 (3), pp. 250-257 : 251

Cubachipteria pianmaensis sp. nov. ( Figs 1–23 )

Diagnosis. Body size 435–480 × 325–355; surface of lamellae foveolae, podotectum I and pteromorph with thin striae, notogaster with irregular circular structure; lamellae with 3–4 pointed teeth; interlamellar setae absent; sensilli clavate, with long stalk and oblong, barbed head; notogastral setae long; all legs monoda ctylous.

Measurements. Body length 480 (holotype), 435–480 (two paratypes); body width 355 (holotype), 325–355 (two paratypes).

Integument. Body color yellow–brownish to brown. Surface of lamellae with very small foveolae densely. Podotectum I with thin striae parallel to anterior margin. Pteromorph with weakly developed striae parallel to lateralanterior margin, radial striae medially. Medial-posterior border of notogaster with irregular circular structure.

Prodorsum ( Figs 1–8 , 11 ). Rostrum rounded. Lamellae broad, fused basally. Lamellae cusp with 3–4 pointed teeth in anterio-dorsal view. Lamellar setae (32) setiform, short and thick. Rostral setae (83) with unilateral barbs densely. Interlamellar setae absent. Sensilli (135) clavate, with long stalk and well developed barbed, oblong distally head, directed to the middle of lamellae.

Notogaster ( Figs 1 , 11–12 ). Dorsosejugal suture convex medially. Process of pteromorphs narrowed apically. Lateral corner of pteromorphs with slightly pointed process. Ten pairs of notogastral setae short, setiform and smooth. Setae c and la (35–38) longest; h 2, p 1 and p 3 shortest (19–25); others of medium size (27–33). Sacculi Sa oval, indistinct; S 1 oblonged, well developed; S 2 and S 3 hardly visible. Lyrifissyre im S-shaped. Opisthosomal gland openings located lateral-posteriorly to h 3.

Gnathosoma ( Figs 2 , 11 ). Subcapitulum: 54 × 96. Setae h (13), m (40) and a (11) setiform, smooth.

Epimeral region ( Figs 2 , 11 ). Epimeral setal formula 3–1–3–3, setiform, smooth. Setae 1a and 2a only alveoli present; 3b (4) shortest; 1c, 3a, 3c and 4c (19–33) middle; 1b, 4a, and 4b (38–46) longest. Setae 3c and 4c inserted laterally. Pedotecta II convex. Discidia triangular, pointed-ended.

Anogenital ( Figs 9–10 ). Six pairs of genital setae (g 1 – g 2 33–38, g 3 – g 6 24–27), one pair of aggenital (35). Two pairs of anal (15–17) and three pairs of adanal (15–25) setae setiform, smooth. Lyrifissures iad located in paranal position, near to anal plates, anterior to ad 3.

Legs ( Figs 13–23 ). Monoda ctylous. Generally similar to other species of Achipteriidae . Formulae of leg setation and solenidia: I (1–5–3–4–20)[1–2–2], II (1–5–3–4–14)[1–2–2], III (1–2–1–3–12)[1–1–0], IV (1–2–2–3–11)[1–1–0]. Seta s of tarsi II and I thick, with strong spines unilaterally. Famulus short, blunt-ended.

Material examined. Holotype male, China, Yunnan, Nujiang Prefecture , Lushui County, Pianma Town (26º0’N, 98º37’E), 12 July 2010, Ping Feng , in moss. Paratypes 2 males, same data as holotype. All deposited in Institute of Entomology , Guizhou University , Guiyang City , China ( GUGC) .

Distribution. China (Yunnan).

Etymology. The specific name “ pianmaensis ” refers to the type locality, Pianma Town.

Figures

Figs 1–10. Cubachipteria pianmaensis sp. nov. 1. Dorsal view. 2. Ventral view. 3. Lamellar sata. 4. Rostral sata. 5. Sensillus. 6–8. Right lamellar cusps. 9. Genital plate. 10. Anal plate. Scale bars: 1–2=100µm, 3–5, 6–8=50µm, 9–10 =50µm.

Figs 11–23. Cubachipteria pianmaensis sp. nov. 11. Lateral view. 12. Caudal view. 13. Femur of leg I, right. 14–15. Genu, tibia and tarsus of leg I, left. 16. Femur of leg II, right. 17. Genu of leg II, left. 18. Tibia of leg II, right. 19. Tarsus of leg II, left. 20. Trochanter, femur, genu and tibia of leg III, right. 21. Tarsus of leg III, right. 22–23. Leg IV, left. Scale bars: 11–12=100µm, 13–23 =50µm.