Otacilia wulong Shi, Wang & Mu, 2025

Otacilia wulong Shi, Wang & Mu sp. nov.

Materials

Type status: Holotype. Occurrence: individualCount: 1; sex: male; lifeStage: adult; occurrenceID: B93AB4C1-E094-5161-9D1C-2F5C4C5C030C; Taxon: scientificName: Otacilia wulong Shi, Wang & Mu , sp. nov.; order: Araneae ; family: Phrurolithidae ; genus: Otacilia ; Location: country: China; municipality: Chongqing; locality: Baima Mountain Nature Reserve, Baima Town, Hongmiao ; verbatimElevation: 1478; verbatimLatitude: 29°14′58″N; verbatimLongitude: 107°33′47″E; Event: year: 2025; month: 9; day: 16; habitat: leaf litter; Record Level: institutionID: the Collection of Spiders, Southwest University; institutionCode: SWUC GoogleMaps

Type status: Paratype. Occurrence: individualCount: 20; sex: 13 male, 7 female; lifeStage: adult; occurrenceID: AA0882B9-5DF0-5256-A2C0-2A6C9DD7A413; Taxon: scientificName: Otacilia wulong Shi, Wang & Mu , sp. nov.; order: Araneae ; family: Phrurolithidae ; genus: Otacilia ; Location: country: China; municipality: Chongqing; locality: Baima Mountain Nature Reserve, Baima Town, Hongmiao ; verbatimElevation: 1478; verbatimLatitude: 29°14′58″N; verbatimLongitude: 107°33′47″E; Event: year: 2025; month: 9; day: 16; habitat: leaf litter; Record Level: institutionID: the Collection of Spiders, Southwest University; institutionCode: SWUC GoogleMaps

Type status: Paratype. Occurrence: individualCount: 6; sex: 1 male, 5 female; lifeStage: adult; occurrenceID: AC7A557A-A214-580D-A65D-F48FF1F76848; Taxon: scientificName: Otacilia wulong Shi, Wang & Mu , sp. nov.; order: Araneae ; family: Phrurolithidae ; genus: Otacilia ; Location: country: China; municipality: Chongqing; locality: Baima Mountain Nature Reserve, Baima Mountain ; verbatimElevation: 1484; verbatimLatitude: 29°14′37″N; verbatimLongitude: 107°33′52″E; Event: year: 2025; month: 9; day: 16; habitat: leaf litter; Record Level: institutionID: the Collection of Spiders, Southwest University; institutionCode: SWUC GoogleMaps

Type status: Paratype. Occurrence: individualCount: 6; sex: 3 male, 3 female; lifeStage: adult; occurrenceID: 2BF25EE1-B033-53F7-84DE-EA9A13A18A48; Taxon: scientificName: Otacilia wulong Shi, Wang & Mu , sp. nov.; order: Araneae ; family: Phrurolithidae ; genus: Otacilia ; Location: country: China; municipality: Chongqing; locality: Baima Mountain Nature Reserve, Baima Mountain ; verbatimElevation: 1474; verbatimLatitude: 29°14′32″N; verbatimLongitude: 107°33′52″E; Event: year: 2025; month: 9; day: 16; habitat: leaf litter; Record Level: institutionID: the Collection of Spiders, Southwest University; institutionCode: SWUC GoogleMaps

Type status: Paratype. Occurrence: individualCount: 53; sex: 33 male, 20 female; lifeStage: adult; occurrenceID: CC9716A6-3FF3-5A19-BF3F-9ABEDDB8FDEE; Taxon: scientificName: Otacilia wulong Shi, Wang & Mu , sp. nov.; order: Araneae ; family: Phrurolithidae ; genus: Otacilia ; Location: country: China; municipality: Chongqing; locality: Baima Mountain Nature Reserve, Baima Town, Chengmen Cave ; verbatimElevation: 1238; verbatimLatitude: 29°19′24″N; verbatimLongitude: 107°36′58″E; Event: year: 2025; month: 9; day: 16; habitat: leaf litter; Record Level: institutionID: the Collection of Spiders, Southwest University; institutionCode: SWUC GoogleMaps

Type status: Paratype. Occurrence: individualCount: 8; sex: 5 male, 3 female; lifeStage: adult; occurrenceID: ED97215F-A3DE-5E6B-8E08-172FA6F3AA52; Taxon: scientificName: Otacilia wulong Shi, Wang & Mu , sp. nov.; order: Araneae ; family: Phrurolithidae ; genus: Otacilia ; Location: country: China; municipality: Chongqing; locality: Baima Mountain Nature Reserve, Baima Town, Shanshuwan ; verbatimElevation: 1300; verbatimLatitude: 29°17′20″N; verbatimLongitude: 107°37′12″E; Event: year: 2025; month: 9; day: 16; habitat: leaf litter; Record Level: institutionID: the Collection of Spiders, Southwest University; institutionCode: SWUC GoogleMaps

Type status: Paratype. Occurrence: individualCount: 7; sex: 3 male, 4 female; lifeStage: adult; occurrenceID: 56633D34-DD8C-5C8D-9442-D481E6407988; Taxon: scientificName: Otacilia wulong Shi, Wang & Mu , sp. nov.; order: Araneae ; family: Phrurolithidae ; genus: Otacilia ; Location: country: China; municipality: Chongqing; locality: Baima Mountain Nature Reserve, Baima Town, Daquan Village ; verbatimElevation: 1363; verbatimLatitude: 29°16′36″N; verbatimLongitude: 107°36′42″E; Event: year: 2025; month: 9; day: 16; habitat: leaf litter; Record Level: institutionID: the Collection of Spiders, Southwest University; institutionCode: SWUC GoogleMaps

Description

Male ( holotype) total length 4.80 (Fig. 1 View Figure 1 C and Fig. 4 View Figure 4 C): carapace 2.36 long, 2.06 wide; abdomen 2.32 long, 1.61 wide. Eye sizes and interdistances: AME 0.16, ALE 0.14, PME 0.12, PLE 0.14; AME – AME 0.05, AME – ALE 0.01, PME – PME 0.17, PME – PLE 0.09, ALE – PLE 0.11. MOA 0.38 long, front width 0.35, back width 0.41. Clypeus height 0.10, CH / AME 1.11. Leg measurements: Ⅰ 9.52 (2.39, 3.65, 2.32, 1.16), Ⅱ 7.82 (2.13, 2.79, 1.78, 1.12), Ⅲ 6.80 (1.88, 2.08, 1.74, 1.10), Ⅳ 10.42 (2.90, 3.16, 2.85, 1.51). Leg formula: 4123. Leg spination: femur I d 2 pl 2, femur II d 1 pl 2, femora III – IV d 1; tibia I pv 8 rv 7, tibia II v 7; metatarsus I v 4, metatarsus II pv 4 rv 3.

Colouration and pattern (Fig. 1 View Figure 1 C). Carapace light brown, highest near fovea; fovea dark red; cervical grooves indistinct, radial grooves distinct. Legs yellow, without annulations. Abdomen yellow, with a small, triangular dorsal scutum flanked by two triangular black patches posteriorly; posterior part with four chevron-shaped markings.

Palp (Fig. 3 View Figure 3 A-D). Femoral apophysis distinct, near tip of femur (Fig. 3 View Figure 3 A and C). RTA base broad, tapering to blunt tip (Fig. 3 View Figure 3 C and D); prolateral tibial apophysis distinct, rectangular (Fig. 3 View Figure 3 A). Bulb oval. Sperm duct U – shaped, tapering from retrolateral to embolus. Embolus base broad, upward, tapering from base to tip, with tip extending towards retrolateral margin of cymbium (Fig. 3 View Figure 3 B). Anterior of tegulum with a transparent membranous area at middle part; conductor absent.

Female ( paratype): total length 6.24 (Fig. 1 View Figure 1 D and Fig. 4 View Figure 4 D): carapace 2.50 long, 2.22 wide; abdomen 3.73 long, 2.47 wide. Eyes. Diameters and interdistances: AME 0.16, ALE 0.17, PME 0.15, PLE 0.17; AME – AME 0.04, AME – ALE 0.02, PME – PME 0.16, PME – PLE 0.10, ALE – PLE 0.13. MOA 0.41 long, front width 0.35, back width 0.44. Clypeus height 0.19, CH / AME 1.12. Leg measurements: Ⅰ 10.14 (2.55, 3.97, 2.42, 1.20), Ⅱ 8.28 (2.13, 3.03, 1.95, 1.17), Ⅲ 7.07 (1.89, 2.22, 1.89, 1.07), Ⅳ 10.81 (2.93, 3.34, 3.03, 1.51). Leg formula: 4123. Leg spination: femur I d 2 pl 4, femur II d 2 pl 2, femora III – IV d 1; tibia I v 8, tibia II pv 7 / 8 rv 7; metatarsus I v 4 pairs, metatarsus II pv 4 rv 3.

Colouration and pattern (Fig. 1 View Figure 1 D). Dorsal scutum absent in female. Other characters as in male, except darker colouration.

Epigyne (Fig. 3 View Figure 3 E and F). Epigynal plate sclerotised, with atrium posteriorly. Copulatory openings small, located at lateral margins of atrium. Median septum rectangular. Copulatory ducts thicker than connecting tubes, transverse, connected to bursae. Connecting tubes slender, coiled into a triangular loop. Glandular appendages absent. Bursae nearly rectangular. Spermathecae spherical, separated by about two spermathecal diameters; fertilisation ducts located at anterior of spermathecae.

Diagnosis

This new species resembles Otacilia simianshan Zhou, Wang & Zhang, 2013 ( Zhou et al. 2013) in having membranous area on anterior of tegulum, but can be recognised by: 1) RTA narrow, tapering from base to tip (vs. RTA wide, broadening from base to tip in O. simianshan ); 2) embolus slant, extending towards 1 o'clock position (vs. transverse, extending towards 3 o'clock position in O. simianshan ); 3) epigynal plate with median septum (vs. median septum absent in O. simianshan ).

Etymology

The species name refers to the type locality; noun in apposition.

Distribution

Known only from the type locality, China ( Chongqing).