Opopaea macula, Tong, Yanfeng & Li, Shuqiang, 2015

Tong, Yanfeng & Li, Shuqiang, 2015, Six new species of the genus Opopaea Simon, 1891 from Xishuangbanna Rainforest, southwestern China (Araneae: Oonopidae), Zootaxa 3931 (1), pp. 41-62 : 46-51

Opopaea macula sp. nov.

( Figures 5–7 )

Type material. Holotype: male ( IZCAS Ar-25010), China: Yunnan Province, Mengla County, Menglun Town, XTBG, secondary tropical seasonal moist forest (21º54.718′N, 101º16.940′E, Alt: 645 m), pitfall traps, 1–15 June 2007, leg. G. Zheng. Paratypes: 1 male ( IZCAS Ar-25010), same data as holotype; 1 male ( IZCAS Ar-25009), same data as holotype, pitfall traps, 1–9 September 2006; 1 female ( IZCAS Ar-25016), same data as holotype, searching, 19–27 August 2006; 1 female ( IZCAS Ar-25015), same data as holotype, pitfall traps, 1–15 June 2007; 1 female ( IZCAS Ar-25008), same data as holotype, pitfall traps, 1–15 April 2007; 1 female ( IZCAS Ar-25011), same data as holotype, pitfall traps; 1 female ( IZCAS Ar-25012), same data as holotype; 2 females ( IZCAS Ar- 25013), same data as holotype; 1 female ( IZCAS Ar-25017), same data as holotype; 1 female ( IZCAS Ar-25014), same data as holotype, pitfall traps, 16–24 September 2006; 1 male ( IZCAS Ar-25018), same data as holotype; 1 male ( IZCAS Ar-25019), same data as holotype; 1 male ( IZCAS Ar-25020), same data as holotype; 1 male ( IZCAS Ar-25021), same data as holotype; 1 male ( IZCAS Ar-25022), same data as holotype; 1 male ( IZCAS Ar-25023), same data as holotype; 1 male ( IZCAS Ar-25024), same data as holotype; 1 female, 1 male ( IZCAS Ar-25024), same data as holotype.

Etymology. The specific name is Latin, meaning spot, referring to the dark spot in the middle of anterior scutal ridge of female genital area; noun.

Diagnosis. The new species is similar to O. media Song & Xu, 1984 , but can be distinguished by the smooth posterior margin of the postgynum depression of females, bow-like in O. medius (compare Fig. 7 D and Song & Xu 1984: Fig. 4 ) and by the different shape of distal part of male palpal bulb (compare Fig. 7 A and Song & Xu 1984: Fig. 5 ).

Description. Male (holotype). Yellowish brown species with yellow legs. Body length 1.53; carapace 0.67 long, 0.52 wide; abdomen 0.87 long, 0.62 wide. Habitus as in Fig. 5 A, B. Carapace: elongated oval in dorsal view, sides with longitudinal streaks; dorsal area smooth with some hairs at lateral edges; pars cephalica slightly elevated in lateral view ( Fig. 5 E); lateral margin rebordered. Eyes: six, well developed, ALE largest, PLE smallest; posterior eye row straight from above, procurved from front; ALE separated by less than their radius, ALE-PLE separated by less than ALE radius, PME touching throughout most of their length, PLE-PME separated by less than PME radius. Clypeus margin unmodified; clypeus height about 1.2 times ALE diameter ( Fig. 5 F). Sternum longer than wide, uniform, fused to carapace; radial furrows present between coxae I-II, II-III, III-IV, with rows of small pits; surface smooth, without pits, microsculpture only in furrows. Anterior end of endites with a small, sharply pointed projection ( Fig. 5 D, E). Legs short, thick and spineless. Abdomen: dorsal scutum strongly sclerotized, punctate, covering full length of abdomen. Book lung covers large, ovoid, without setae. Pedicel tube short, ribbed, with small, dorsolateral, triangular extensions, scuto-pedicel region lower than diameter of pedicel, with nearly straight scutal ridges ( Fig. 5 G), scutum not extending far dorsal of pedicel. Sperm pore small, transverse; posterior spiracles connected by groove ( Fig. 5 H); posteriorly directed apodemes present. Palp ( Figs 5 I, J, 7A–C): patella 0.29 long, 0.16 wide, attached to femur at 0.42; cymbium completely fused to bulb, no seam visible; bulb long and narrow, with distal tip slightly bent medially.

Female. As in male except as noted. Habitus as in Fig. 6 A–C. Body length 1.66; carapace 0.69 long, 0.52 wide; abdomen 0.97 long, 0.56 wide. Endites without projections ( Fig. 6 F). Genitalia ( Figs 6 J, K, 7D, E): in ventral view with a stick-shaped dark spot (sds) in the middle of the anterior scutal ridge of postgynum; postgynum depression narrow, as wide as the distance between the lateral apodemes; paddle-like sclerite (pls) with thin straight arms in dorsal view; nail-like process (nlp) well separated; globular appendix (ga) small.

Distribution. Known only from the type locality.

Figures

FIGURE 4. Opopaea flabellata sp. nov., female. A – C. Habitus, dorsal, lateral and ventral views; D – G. Prosoma, dorsal, lateral, ventral and anterior views; H, I. Abdomen, anterior and ventral views. Abbreviations: boc = booklung covers; dte = dorsolateral, triangular extensions; sr = scutal ridge. Scales: 0.2 mm.

FIGURE 5. Opopaea macula sp. nov., male. A – B. Habitus, dorsal and lateral views; C – F. Prosoma, dorsal, ventral, lateral and anterior views; G, H. Abdomen, anterior and ventral views; I, J. Left palp, prolateral and retrolateral views. Abbreviations: boc = booklung covers; dte = dorsolateral, triangular extensions; sr = scutal ridge. Scales: A – H = 0.2 mm; I, J = 0.1 mm.

FIGURE 6. Opopaea macula sp. nov., female. A – C. Habitus, dorsal, lateral and ventral views; D – G. Prosoma, dorsal, lateral, ventral and anterior views; H, I. Abdomen, anterior and ventral views; J, K. Genitalia, ventral and dorsal views. Abbreviations: boc = booklung covers. Scales: A – G = 0.2 mm; J, K = 0.1 mm.

FIGURE 7. Opopaea macula sp. nov. A. Male left palp, prolateral view; B. Same, retrolateral view; C. Distal part of left male palpal bulb, dorsal view; D. Female genitalia, ventral view; E. Same, dorsal view. Abbreviations: apo = apodeme; asr = anterior scutal ridge; ga = globular appendix; nlp = nail-like process; pd = postgynum depression; pls = paddle-like sclerite; sds = stickshaped dark spot. Scales: A, B, D, E = 0.1 mm; C = 0.05 mm.