Otacilia subforcipata, Mu, Yannan & Zhang, Feng, 2023

Mu, Yannan & Zhang, Feng, 2023, Further additions to the guardstone spider fauna from China (Araneae: Phrurolithidae), Zootaxa 5338 (1), pp. 1-104 : 55-59

publication ID

https://doi.org/ 10.11646/zootaxa.5338.1.1

publication LSID

lsid:zoobank.org:pub:CAA37212-3008-43F4-98DE-94D7A3FFD3B6

DOI

https://doi.org/10.5281/zenodo.8283878

persistent identifier

https://treatment.plazi.org/id/364E87DE-8645-FFB3-5AA6-F9F2DAC12227

treatment provided by

Plazi

scientific name

Otacilia subforcipata
status

sp. nov.

Otacilia subforcipata View in CoL sp. nov. (ñfflừŴṚff)

Figs 43–45 View FIGURE 43 View FIGURE 44 View FIGURE 45

Type material. Holotype ♁, CHINA: Yunnan Province: Baoshan City, Longyang District, Lujiang Town (24.928230°N, 98.836184°E, 1001 m a.s.l.), 27 Nov. 2017, leg. Yannan Mu. GoogleMaps

Paratypes: 5 ♁ 3 ♀, with same data as holotype. 5 GoogleMaps 10 ♀, same locality, Baihua Ridge Old Street (25.298096°N, 98.786316°E, 1983 m a.s.l.), 24 Nov. 2017, leg. Yannan Mu GoogleMaps ; 1 ♁ 1 ♀, same locality, Dayang Zhai (24.928124°N, 98.797474°E, 1927 m a.s.l.), 23 Nov. 2017, leg. Yannan Mu. GoogleMaps

Etymology. This specific is named for its similarity to O. forcipata Yang, Wang & Yang, 2013 .

Diagnosis. This new species resembles O. forcipata in having a similarly shaped embolus and connecting tubes, but can be recognized by: 1) the absence of a conductor (vs with conductor, cf. Fig. 44B, C View FIGURE 44 and fig. 9 in Yang et al. [2013]), 2) the presence of a mastoid-shaped apophysis on the retroventral side of the tibia (vs without, cf. Fig. 44C View FIGURE 44 and fig. 10 in Yang et al. [2013]), 3) the blunt tip of the retrolateral tibial apophysis, with a slender branch at the base prolaterally (vs tip bifurcate, without a branch, cf. Fig. 44B View FIGURE 44 and fig. 10 in Yang et al. [2013]), and 4) the wider, wavy-shaped posterior edge of the epigynal plate (vs narrow, M-shaped, cf. Fig. 44E View FIGURE 44 and fig. 13 in Yang et al. [2013]).

Description. Male (Holotype): total length 3.46, carapace 1.74 long, 1.52 wide; abdomen 1.72 long, 1.14 wide. Eye sizes and interdistances: AME 0.13, ALE 0.11, PME 0.11, PLE 0.10; AME–AME 0.06, AME–ALE 0.01, ALE–ALE 0.31, PME–PME 0.14, PME–PLE 0.08, PLE–PLE 0.52, ALE–PLE 0.09. EAW 0.65, CRW 0.83, EAW/CRW 0.78, CRW/CW 0.55. MOA 0.28 long, anterior width 0.28, posterior width 0.36. CH 0.17, CH /AME 1.31. Labium 0.17 long, 0.26 wide. Sternum 0.97 long, 0.93 wide. Leg measurements: Ⅰ 7.18 (1.82, 0.63, 2.10, 1.73, 0.90), II 6.12 (1.63, 0.60, 1.64, 1.35, 0.90), III 5.32 (1.41, 0.57, 1.14, 1.35, 0.85), IV 7.95 (2.09, 0.62, 1.88, 2.20, 1.16). Spination: femur I d 2 pl 4, femora II–IV d 1, femur II pl 3, tibia Ⅰ pv 8 rv 8, tibia II pv 7 rv 6, metatarsus Ⅰ pv 4 rv 4, metatarsus II pv 4 rv 3.

Coloration. Carapace black, with several shapes resembling flowing water droplets beside fovea. Abdomen gray, with a narrow and wedge shape dorsal scutum, large black pattern beside dorsal scutum, four black transverse stripes at posterior of abdomen ( Fig. 43A, B View FIGURE 43 ). Legs yellow, with black annuli near tip of femora I–IV.

Palp as in Figs 44A–D View FIGURE 44 , 45A–C View FIGURE 45 . Femoral apophysis well developed, nearly at middle of femur. Tibia about half length of femur. Prolateral tibial apophysis distinct, nearly round. Retrolateral tibial apophysis base wide, tapering from base to end, tip blunt, with slender branch at base prolaterally, curved in dorsal view. Retro-ventral tibia with mastoid-shaped apophysis. Tegulum pyriform, about 1/3 anterior area membranous; tegular apophysis absent. Sperm duct distinct, “U”-shaped, tapering from retrolateral side of tegulum to embolus. Embolus flat and wide, tip blunt, curved, C-shaped. Conductor membranous.

Female (Paratype): total length 3.14, carapace 1.56 long, 1.41 wide; abdomen 1.58 long, 1.09 wide. Eye sizes and interdistances: AME 0.10, ALE 0.10, PME 0.08, PLE 0.09; AME–AME 0.05, AME–ALE 0.01, ALE–ALE 0.29, PME–PME 0.11, PME–PLE 0.07, PLE–PLE 0.43, ALE–PLE 0. 10. EAW 0.57, CRW 0.77, EAW/CRW 0.74, CRW/CW 0.55. MOA 0.27 long, anterior width 0.25, posterior width 0.30. CH 0.12, CH /AME 1.20. Labium 0.14 long, 0.26 wide. Sternum 0.91 long, 0.94 wide. Leg measurements: Ⅰ 6.73 (1.64, 0.64, 2.02, 1.62, 0.81), II 4.64 (1.23, 0.42, 1.18, 1.13, 0.68), III 4.72 (1.27, 0.54, 1.00, 1.23, 0.68), IV 7.22 (1.87, 0.62, 1.73, 2.04, 0.96). Spination: femora I–IV d 1, femur I pl 5, femur II pl 3, tibia Ⅰ pv 9 rv 9, tibia II pv 6 rv 5, metatarsus Ⅰ pv 5 rv 4, metatarsus II pv 4 rv 3. Legs yellow. Other characters as in male, except carapace darker and dorsal scutum absent ( Fig. 43C, D View FIGURE 43 ).

Epigyne as in Figs 44E–F View FIGURE 44 , 45D–E View FIGURE 45 . Epigynal plate sclerotized. Atrium heart-shaped. Median septum distinct, wide anteriorly, narrow posteriorly. Copulatory openings nearly triangular, located at anterior of atrium, separated by more than 3 times spermathecae diameter. Copulatory ducts short. Connecting tubes long, auriform. Bursa balloon-shaped, transparent. Spermathecae small, round, separated by about one diameter. Fertilization ducts located at anterior margin of spermathecae.

Distribution. China (Yunnan Province).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Phrurolithidae

Genus

Otacilia

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