Opopaea rigidula, 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 : 51-55

publication ID

https://doi.org/ 10.11646/zootaxa.3931.1.3

publication LSID

lsid:zoobank.org:pub:C981EB99-53CA-4A18-AE37-272CD47F6954

DOI

https://doi.org/10.5281/zenodo.6119473

persistent identifier

https://treatment.plazi.org/id/BA7B583E-6E6D-C17A-FF61-FC0737B8FD38

treatment provided by

Plazi

scientific name

Opopaea rigidula
status

sp. nov.

Opopaea rigidula View in CoL sp. nov.

( Figures 8–10 View FIGURE 8 View FIGURE 9 View FIGURE 10 , 12 View FIGURE 12 E, F, K, L)

Type material. Holotype: male ( IZCAS Ar-25051), China: Yunnan Province, Mengla County, Menglun Town, XTBG, secondary tropical seasonal moist forest (21º54.984′N, 101º16.982′E, Alt: 656 m), searching, 10–20 June 2007, leg. G. Zheng. Paratypes: 2 females, 4 males ( IZCAS Ar-25051), same data as holotype; 2 females, 2 males ( IZCAS Ar-25047), same data as holotype, pitfall traps, 1–15 July 2007; 2 females, 1 male ( IZCAS Ar-25050), same data as holotype, searching, 19–25 September 2006; 1 female, 1 male ( IZCAS Ar-25053), same data as holotype, searching, 19–25 October 2006; 1 female, 1 male ( IZCAS Ar-25055), same data as holotype, pitfall traps, 1–15 March 2007; 1 female, 1 male ( IZCAS Ar-25046), same data as holotype, searching, 19–25 September 2006; 2 females, 1 male ( IZCAS Ar-25056), same data as holotype, searching, 5–12 November 2006; 2 females, 2 males ( IZCAS Ar-25059), searching, primary tropical seasonal rainforest (21º57.669′N, 101º11.893′E, Alt: 790 m), 19–25 November 2006, leg. G. Zheng; 1 female, 1 male ( IZCAS Ar-25049), same data as above, pitfall traps, 16–31 November 2007; 1 female, 2 males ( IZCAS Ar-25052), same data as above, searching, 5–12 December 2006; 1 female, 1 male ( IZCAS Ar-25058), searching, rubber-tea plantation (21º55.551′N, 101º16.923′E, Alt: 561 m), 4–11 May 2007, leg. G. Zheng; 3 males ( IZCAS Ar-25057), same data as above, pitfall traps, 1–15 February 2007; 2 females, 2 males ( IZCAS Ar-25048), same data as above, pitfall traps, 1–15 June 2007; 1 female, 2 males ( IZCAS Ar-25054), same data as above, searching, 19–26 April 2007.

Etymology. The specific name means “rigid” in Latin, and refers to the strongly sclerotized posterior scutal ridge in female genital area; adjective.

Diagnosis. The males of the new species are similar to those of O. tumida Tong & Li, 2013 , but can be distinguished by the anterior end of endites with two small, sharply pointed projections ( Fig. 8 View FIGURE 8 H) and the broad distal part of palpal bulb (compare Fig. 10 View FIGURE 10 A, B and Tong & Li 2013b: Fig. 10 View FIGURE 10 A, B); the females can be distinguished from the other congeneric species by the presence of the posterior scutal ridge (psr in Fig. 12 View FIGURE 12 E, K) of genital area.

Description. Male (holotype). Yellowish brown species with yellow legs. Body length 1.53; carapace 0.61 long, 0.53 wide; abdomen 0.84 long, 0.57 wide. Habitus as in Fig. 8 View FIGURE 8 A–C. Carapace: 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. 8 View FIGURE 8 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 1.5 times ALE diameter ( Fig. 8 View FIGURE 8 G). 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 ( Fig. 8 View FIGURE 8 F). Anterior end of endites with two small, sharply pointed projections ( Fig. 8 View FIGURE 8 F, H). 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. 8 View FIGURE 8 I), scutum not extending far dorsal of pedicel. Sperm pore small, transverse; posterior spiracles connected by groove ( Fig. 8 View FIGURE 8 J); posteriorly directed apodemes present. Palp ( Fig. 10 View FIGURE 10 ): patella 0.29 long, 0.16 wide, attached to femur at 0.47; cymbium completely fused to bulb, no seam visible; bulb distal part broad, with a small apophysis (sap) in the retrolateral distal region.

Female. As in male except as noted. Habitus as in Fig. 9 View FIGURE 9 A–C. Body length 1.72; carapace 0.68 long, 0.53 wide; abdomen 1.05 long, 0.65 wide. Endites without projections ( Fig. 9 View FIGURE 9 F). Genitalia ( Fig. 12 View FIGURE 12 E, F, K, L): in ventral view anterior scutal ridge (asr) of postgynum with small median knob (smk), between the asr and the groove connecting spiracles with a posterior scutal ridge (psr); paddle-like sclerite (pls) with thin straight arms bent at end; nail-like process (nlp) well separated; globular appendix (ga) small.

Distribution. Known only from the type locality.

IZCAS

Institute of Zoology, Chinese Academy of Sciences

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Oonopidae

Genus

Opopaea

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