Cornifronus simplex Jin & Zhang, 2024

Jin, Chi, Li, Liangtao & Zhang, Feng, 2024, Cornifronus gen. nov., a new dark sac spider genus from China (Araneae: Trachelidae), Zootaxa 5415 (3), pp. 392-400 : 398

publication ID	https://doi.org/ 10.11646/zootaxa.5415.3.2
publication LSID	lsid:zoobank.org:pub:D74D51EA-3888-4583-A72A-E3B0B9C1DD3C
DOI	https://doi.org/10.5281/zenodo.10693208
persistent identifier	https://treatment.plazi.org/id/EB5E87D0-B808-FFCE-FF33-A3DDD6D0F868
treatment provided by	Plazi
scientific name	Cornifronus simplex Jin & Zhang
status	sp. nov.

Treatment

Cornifronus simplex Jin & Zhang , sp. nov. (DZẠĦĸu)

Figs 1–5 View FIGURE 1 View FIGURE 2 View FIGURE 3 View FIGURE 4 View FIGURE 5

Type material. Holotype ♁, CHINA: Hainan Province, Lingshui County, Diaoluo Mountain National Nature Reserve Administration, roadside, 29 January 2015, leg. C. Jin, X. Guo, L. Fu and B. Zhang.

Paratypes: CHINA: Hainan Province: 8♀ 2♁, same data as holotype ; 1♀ 2♁, Lingshui County, near the Diaoluo Mountain National Nature Reserve Administration, 27 January 2015, leg. C. Jin ; 8♀ 4♁, Ledong County, Jianfengling National Forest Park, 1 February 2015, leg. C. Jin, X. Guo, L. Fu & B. Zhang. Yunnan Province: 1♀, Dehong Prefecture, Yingjiang County, Fenghuang Mountain , 20 July 2014, leg. P. Wu ; 1♀, Mengla County, Xishuangbanna Tropical Botanical Garden east tour area (21.92364°N, 101.262012°E), 540 m a.s.l., 14 May 2017, leg. B. Zhou and X. Zang. GoogleMaps

Etymology. The specific name is from the Latin word simplex , meaning “simple”, and refers to the simple genital structure of this species.

Diagnosis. See the generic diagnosis above.

Description. Male ( Figs 1E–H View FIGURE 1 , 2 View FIGURE 2 , 3C–E View FIGURE 3 , 4A–C View FIGURE 4 ). Total length 1.65–1.90 (n = 7). Holotype: body length 1.71; carapace 0.91 long, 0.63 wide, width/length = 0.69; abdomen 0.80 long, 0.59 wide. Eye diameters: AME 0.04, ALE 0.06, PME 0.05, PLE 0.05. Eye interdistances: AME–AME 0.05, AME–ALE 0.01, ALE–ALE 0.12, PME–PME 0.04, PME–PLE 0.05, PLE–PLE 0.24, ALE–PLE 0.06. OAW 0.32, CRW 0.36, OAW/CRW = 0.89. CRW/carapace width = 0.22. MOA 0.13 long, front width 0.10, back width 0.15. Clypeus height 0.08, 2x AME diameter. Chelicerae with three promarginal and two retromarginal teeth. Labium 0.12 long, 0.15 wide. Sternum 0.51 long, 0.44 wide. Leg measurements: leg I 2.01 (0.58 + 0.21 + 0.51 + 0.43 + 0.28), II 1.74 (0.49 + 0.20 + 0.39 + 0.37 + 0.29), III 1.61 (0.45 + 0.17 + 0.34 + 0.37 + 0.28), IV 2.13 (0.57 + 0.20 + 0.46 + 0.58 + 0.32). Leg formula: 4123.

Females ( Figs 1A–D View FIGURE 1 , 3A–B View FIGURE 3 , 4D–E View FIGURE 4 ). Total length 2.12–2.43 (n = 19). One paratype: body length 2.32; carapace 1.15 long, 0.76 wide, width/length = 0.66; abdomen 1.17 long, 0.98 wide. Eye diameters: AME 0.05, ALE 0.06, PME 0.06, PLE 0.07. Eye interdistances: AME–AME 0.02, AME–ALE 0.01, ALE–ALE 0.15, PME–PME 0.06, PME–PLE 0.06, PLE–PLE 0.29, ALE–PLE 0.07. OAW 0.40, CRW 0.46, OAW/CRW = 0.87. CRW/carapace width = 0.61. MOA 0.14 long, front width 0.13, back width 0.18. Clypeus height 0.12, 2.4x AME diameter. Labium 0.15 long, 0.15 wide. Sternum 0.53 long, 0.39 wide. Measurements of legs: leg I 2.50 (0.73 + 0.27 + 0.65 + 0.54 + 0.31), II 2.16 (0.63 + 0.25 + 0.49 + 0.49 + 0.30), III 2.00 (0.55 + 0.23 + 0.41 + 0.49 + 0.32), IV 2.60 (0.71 + 0.25 + 0.55 + 0.72 + 0.37). Leg formula: 4123.

Leg spination: tibiae: I plv 6 rlv 5, II plv 6/5 rlv 5/4 (female/male); metatarsi: I–II plv 4 rlv 4; tarsus: I–II plv 3 rlv 2.

Male palp ( Figs 3C–E View FIGURE 3 , 4A–C View FIGURE 4 ) and female genitalia ( Figs 3A–B View FIGURE 3 , 4D–E View FIGURE 4 ) as in the generic description.

Distribution. China (Yunnan, Hainan) ( Fig. 5 View FIGURE 5 ).