Deione ovata, Mi, Xiao-Qi, Peng, Xian-Jin & Yin, Chang-Min, 2010

Mi, Xiao-Qi, Peng, Xian-Jin & Yin, Chang-Min, 2010, Two new species of the rare orb weaving spider genus Deione (Araneae: Araneidae) from China, Zootaxa 2491, pp. 34-40 : 37-39

Deione ovata new species

Figs 10–16 , 18

Holotype: male, CHINA, Yunnan Province, Longyang County, Bawan Township, Baihua Village, N24.84100º, E98.89140º, 700 m, 1 June 2005, Heng-mei Yan and Ke-ji Guo, GKJ035 ( HNU).

Paratypes: 1 male, same data as holotype, GKJ035 ( CAS); 1 female, CHINA, Yunnan Province, Longling County, Longjiang Township, Xiaoheishan Nature Reserve, N24.82886º, E98.75917º, 2010 m, 26 May 2005, Heng-mei Yan, GKJ026 ( HNU); 1 female, GKJ026 ( CAS); 1 female, CHINA, Yunnan Province, Tengchong County, Wuhe Township, Tongjiazhuang Village, Longchuanjiang River, N24.89284º, E98.67439º, 1210 m, 24 May 2005, Heng-mei Yan and Ke-ji Guo, GKJ020 ( HNU).

Etymology. The specific name comes from Latin word ovata (ovoid), in reference to the shape of the spermathecae.

Diagnosis. Deione ovate n. sp. is similar to D. renaria n. sp., but it can be distinguished from the latter by having the median apophysis hooked (foliiform in renaria ); a much longer terminal apophysis; an epigynum without scape and the ovoid spermathecae (kidney-shaped in renaria ).

Description. Male (holotype): Total length 3.70. Prosoma 1.90 long, 1.60 wide; ophisthosoma 1.80 long, 1.55 wide. Carapace longer than wide, dark brown, cervical groove obvious, cephalic region slightly elevated ( Fig. 11 ). Eye sizes and interdistances: ALE 0.09, PLE 0.09, AME 0.15, PME 0.13; AME-AME 0.13, AME- ALE 0.30, PME-PME 0.18, PME-PLE 0.33, MOA 0.34 long with front width 0.39 and back width 0.36. Clypeus height 0.15. Sternum dark brown, cordate; chelicerae dark brown, with five promarginal and three retromarginal teeth; gnathocoxae and labium yellowish brown. Legs yellow with grayish brown alluli, with many setae and some macrosetae, coxa I hooked near distal edge, tibia II expanded, with five macrosetae distally ( Fig. 12 ), leg measurements: I 5.40 (1.55, 2.15, 1.10, 0.60), II 5.05 (1.40, 2.05, 1.05, 0.55), III 3.30 (1.05, 1.25, 0.55, 0.45), IV 4.55 (1.35, 1.65, 1.05, 0.50), formula: I, II, IV, III. Opisthosoma longer than wide, with a pair of macrosetae anteriorly and two pairs of lateral humps posteriorly, dorsum grayish with black pattern ( Fig. 11 ).Palpus with 2 patellar macrosetae; median apophysis hooked ( Fig. 15 ); membranous conductor wrapped the embolus ( Fig. 15 ); embolus slender and long ( Fig. 15 ); terminal apophysis long, cylindrical ( Figs 15, 16 ).

Female (paratype from GKJ026): Total length 4.90. Prosoma 2.00 long, 1.90 wide; opisthosoma 3.40 long, 2.10 wide. Coloration as in male, but lighter ( Fig. 10 ). Eye sizes and interdistances: ALE 0.09, PLE 0.10, AME 0.14, PME 0.13; AME-AME 0.13, AME-ALE 0.35, PME-PME 0.18, PME-PLE 0.40, MOA 0.35 long with front width 0.36 and back width 0.38. Clypeus height 0.14. Leg measurements: I 4.75 (1.40, 1.80, 1.05, 0.50), II 4.40 (1.35, 1.60, 0.95, 0.50), III 2.95 (0.95, 1.05, 0.50, 0.45), IV 4.30 (1.25, 1.60, 0.95, 0.50), formula: I, II, IV, III. Epigynum wide, without scape ( Fig. 13 ); copulatory ducts long and twisted ( Fig. 13 ); spermathecae ovoid, touching each other ( Fig. 14 ).

Variation. Females, total length 3.95–5.25; males, total length 3.70–3.75. Distribution. China (Yunnan Province).

Figures

FIGURES 10 – 12. Deione ovata n. sp. 10, female habitus, dorsal view; 11, male habitus, dorsal view; 12, left tibia II of male, ventral view. Scale bars = 1 mm.

FIGURES 13 – 16. Deione ovata n. sp. 13, epigynum, ventral view; 14, vulva, dorsal view; 15, left palp, prolateral view; 16, left palp, retrolateral view. Scale bars = 0.1 mm.

FIGURES 17 – 18. Distribution records of the species: 17, Deione renaria n. sp.; 18, Deione ovata n. sp.