Asceua haocongi Lin & Li, 2023

Wang, Wei, Lin, Yejie, Zhang, Xiaoqing, Chu, Chang, Li, Shuqiang & Huang, Chengming, 2023, Two new species of the genus Asceua Thorell, 1887 (Araneae, Zodariidae) from China, Biodiversity Data Journal 11, pp. 103298-103298 : 103298

Asceua haocongi Lin & Li, 2023 sp. n.

Materials

Type status: Holotype. Occurrence: recordedBy: Haocong Yang; sex: male; occurrenceID: 840AD 147-8576-5FF5-9E4E-7454F1D069F4; Location : country: China; stateProvince: Hainan; locality: Sanya City , Jiyang District , Sanya Xiaodonghai Wedding Photography Base ; verbatimElevation: 2 m; verbatimCoordinates: N18.2004°, E109.4984°; Identification: identifiedBy: Yejie Lin; Event: year: 2023; month: 2; day: 4; Record Level: institutionID: IZCAS-Ar 44408 Type status: Paratype. Occurrence: recordedBy: Haocong Yang; sex: female; occurrenceID: 0D741223-ED30-5E71-909A-A073F7FDF091; Location : country: China; stateProvince: Hainan; locality: Sanya City , Jiyang District , Sanya Xiaodonghai Wedding Photography Base ; verbatimElevation: 2 m; verbatimCoordinates: N18.2004°, E109.4984°; Identification: identifiedBy: Yejie Lin; Event: year: 2023; month: 2; day: 4; Record Level: institutionID: IZCAS-Ar 44409 Type status: Paratype. Occurrence: recordedBy: Haocong Yang; sex: female; occurrenceID: 0D741223-ED30-5E71-909A-A073F7FDF091; Location : country: China; stateProvince: Hainan; locality: Sanya City , Jiyang District , Sanya Xiaodonghai Wedding Photography Base ; verbatimElevation: 2 m; verbatimCoordinates: N18.2004°, E109.4984°; Identification: identifiedBy: Yejie Lin; Event: year: 2023; month: 2; day: 4; Record Level: institutionID: IZCAS-Ar 44410 Type status: Paratype. Occurrence: recordedBy: Haocong Yang; sex: female; occurrenceID: 0D741223-ED30-5E71-909A-A073F7FDF091; Location : country: China; stateProvince: Hainan; locality: Sanya City , Jiyang District , Sanya Xiaodonghai Wedding Photography Base ; verbatimElevation: 2 m; verbatimCoordinates: N18.2004°, E109.4984°; Identification: identifiedBy: Yejie Lin; Event: year: 2023; month: 2; day: 4; Record Level: institutionID: IZCAS-Ar 44411 Type status: Paratype. Occurrence: recordedBy: Haocong Yang; sex: female; occurrenceID: 0D741223-ED30-5E71-909A-A073F7FDF091; Location : country: China; stateProvince: Hainan; locality: Sanya City , Jiyang District , Sanya Xiaodonghai Wedding Photography Base ; verbatimElevation: 2 m; verbatimCoordinates: N18.2004°, E109.4984°; Identification: identifiedBy: Yejie Lin; Event: year: 2023; month: 2; day: 4; Record Level: institutionID: IZCAS-Ar 44412 Type status: Paratype. Occurrence: recordedBy: Haocong Yang; sex: female; occurrenceID: 0D741223-ED30-5E71-909A-A073F7FDF091; Location : country: China; stateProvince: Hainan; locality: Sanya City , Jiyang District , Sanya Xiaodonghai Wedding Photography Base ; verbatimElevation: 2 m; verbatimCoordinates: N18.2004°, E109.4984°; Identification: identifiedBy: Yejie Lin; Event: year: 2023; month: 2; day: 4; Record Level: institutionID: IZCAS-Ar44413

Description

Male (holotype). Total length 2.13; carapace 1.07 long, 0.74 wide, opisthosoma 1.06 long, 0.71 wide. Eye sizes and interdistances: AME 0.08, ALE 0.06, PME 0.06, PLE 0.06, AME-AME 0.05, AME-ALE 0.03, PME-PME 0.08, PME-PLE 0.08, AME-PME 0.09, ALE-PLE 0.05. MOA 0.21 long, front width 0.19, back width 0.19. Clypeus height 0.29. Chelicerae with 2 promarginal teeth. Leg measurements: I 3.00 (0.76, 0.24, 0.73, 0.78, 0.49), II 2.34 (0.64, 0.25, 0.48, 0.61, 0.36), III 2.34 (0.64, 0.25, 0.47, 0.64, 0.36), IV 3.23 (0.84, 0.25, 0.73, 0.96, 0.45).

Colouration (Fig. 4 A, B). Carapace red-brown, edge brown. Chelicerae, endites, labium and sternum red-brown. Legs yellow-brown with black ring pattern. Opisthosoma oval, dark brown with numbers of small yellow-brown spots, with ventral scutum covering opisthosoma, dorsal white with purple spots. Spinnerets purple.

Palp (Fig. 2 ). Patella almost as long as tibia. Tibia with two apophyses, retrolateral tibial apophysis blunt, triangular-shaped; dorsal tibial apophysis lamellate. Cymbium almost two times longer than wide. Cymbial furrow with a hood anteriorly and a digitiform apophysis posteriorly. Bulb almost 1.5 times longer than wide. Tegulum almost round. Tegular apophysis black, terminal sharp. Conductor bent, originating dorsally on bulb, with slightly widened tip. Embolus slender and whip-like, distal portion pointing to middle of conductor in ventral view. Base of embolus large, with large membranous prolateral part, arising at 7 o’clock position.

Female (IZCAS-Ar44409). Total length 2.57; carapace 1.22 long, 0.84 wide, opisthosoma 1.35 long, 0.92 wide. Eye sizes and interdistances: AME 0.08, ALE 0.07, PME 0.06, PLE 0.06, AME-AME 0.05, AME-ALE 0.03, PME-PME 0.09, PME-PLE 0.10, AME-PME 0.10, ALE-PLE 0.06. MOA 0.23 long, front width 0.20, back width 0.21. Clypeus height 0.33. Chelicerae with 2 promarginal teeth. Leg measurements: I 2.90 (0.77, 0.27, 0.65, 0.73, 0.48), II 2.44 (0.67, 0.27, 0.49, 0.61, 0.40), III 2.45 (0.66, 0.28, 0.49, 0.66, 0.36), IV 3.34 (0.87, 0.28, 0.75, 0.98, 0.46).

Colouration (Fig. 4 C, D). As in male, except lacking scutum on opisthosoma and opisthosoma with three pairs of white spots, first pair oblong-oval, longitudinal, largest; second pair irregular in shape, positioned lateral to the first pair, third pair ovoid, transverse, slightly connected to the second pair.

Epigyne (Fig. 3 ). Epigynal plate as long as wide. Copulatory openings located on anterior portion of epigyne. Copulatory ducts intertwined. Spermathecae kidney-shaped, two times wider than copulatory ducts. Fertilisation ducts directed at the 2 o'clock position from spermathecae.

Diagnosis

The male is similar to that of Asceua radiosa Jocqué, 1986 by the triangular-shaped retrolateral tibial apophysis, same shaped cymbial furrow and tegular apophysis needle-shaped. Females share the same shape of the copulatory duct. However, the new species can be distinguished from A. radiosa by the cymbial furrow with a digitiform apophysis posteriorly (Fig. 2 C) [vs. absent in A. radiosa (see Jocqué (1986), fig. 4)] and tegular apophysis strongly curved (Fig. 2 B) [vs. almost straight in A. radiosa (see Jocqué (1986), fig. 5)]. The female can be distinguished from A. radiosa by the kidney-shaped spermatheca (Fig. 3 B) [vs. oval in A. radiosa (see Jocqué (1986), fig. 8)].

Etymology

The species is named after the collector Mr. Haochong Yang; noun (name) in genitive case.

Distribution

Known only from the type locality (Fig. 9 ).

Figures

Figure 2. Asceua haocongi sp. n., holotype male. A Prolateral view; B Ventral view; C Retrolateral view. Abbreviations: C conductor; CF cymbial furrow; DTA dorsal tibial apophysis; E embolus; EB embolic base; RTA retrolateral tibial apophysis; TA tegular apophysis.

Figure 3. Asceua haocongi sp. n., paratype female. A Epigyne, ventral view; B Vulva, dorsal view. Abbreviations: CD copulatory duct; CO copulatory opening; FD fertilisation duct; S spermatheca.

Figure 4. Asceua haocongi sp. n., male holotype (A, B) and female paratype (C, D), Habitus. A, C Dorsal view; B, D Ventral view.

Figure 9. Distribution records of new Asceua species in China: 1 A. haocongi sp. n.; 2 A. zijin sp. n.