Otacilia damingshanica, Liu & Xu & Yin, 2023

Liu, Keke, Xu, Xiang & Yin, Haiqiang, 2023, A survey of the Phrurolithidae (Arachnida: Araneae) of Damingshan National Natural Reserve, south China, Zootaxa 5278 (3), pp. 511-536 : 515-519

publication ID

https://doi.org/ 10.11646/zootaxa.5278.3.5

publication LSID

lsid:zoobank.org:pub:789CAC72-46E0-4E86-8786-6AF37528FA7B

DOI

https://doi.org/10.5281/zenodo.7906645

persistent identifier

https://treatment.plazi.org/id/7F5B87C6-1441-8640-FF48-FAA6FA88FD3C

treatment provided by

Plazi

scientific name

Otacilia damingshanica
status

sp. nov.

Otacilia damingshanica sp. nov.

( Figs 4−7 View FIGURE 4 View FIGURE 5 View FIGURE 6 View FIGURE 7 , 21 View FIGURE 21 )

Type material. Holotype: ♁: China, Guangxi Zhuang Autonomous Region, Nanning City , Wuming County, Daming Mountain Natural Reserve , Daxiagu (meaning Grand Canyon), 23°29'57.48"N, 108°25'43.67"E, 914 m, 1.11.2018 GoogleMaps . Paratypes: 2 ♀, with same data as holotype GoogleMaps .

Etymology. The specific name refers to the type locality, Chinese pinyin 'damingshan'; adjective.

Diagnosis. The male of this new species is similar to that of O. microstoma Wang, Chen, Zhou, Zhang & Zhang, 2015 (see Wang et al. 2015: 449, figs 2c−e) in having a very strong cone-shaped retrolateral tibial apophysis (RTA), but differs from it by the V-shaped sperm duct (vs. U-shaped), the large triangular retrolateral tegular apophysis (rTA) (vs. small) and the broad oval distal tegular apophysis (dTA) pointed anteriorly ( Figs 4D View FIGURE 4 , 6A, B View FIGURE 6 ) (vs. fan-shaped, not pointed). The female of this species resembles O. xueshanensis Mu, Jin & Zhang, 2022 (see Mu et al. 2022: 258, figs 17e, f, 18e, f) in having a thick, longitudinal copulatory ducts (CD) located at medially, but differs from it by the posterior part of copulatory ducts directed laterally (vs. medially) and pair of large curved spermathecae (vs. small oval) ( Figs 5C View FIGURE 5 , 6D View FIGURE 6 ).

Description. Male holotype. Habitus as in Figs 4A, B View FIGURE 4 . Total length 3.73, carapace 1.85 long, 1.57 wide. Eye sizes and interdistances: AME 0.08, ALE 0.10, PME 0.08, PLE 0.10; AME−AME 0.06, ALE−AME 0.03, PME−PME 0.13, ALE−ALE 0.28, PLE−PME 0.10, PLE−PLE 0.40, ALE−PLE 0.15, AME−PME 0.12, AME−PLE 0.23. MOA 0.29 long, anterior width 0.23, posterior width 0.29. Chelicera with 3 promarginal (proximal one largest, distal one smallest) and 5 retromarginal teeth (distal one largest, proximal one smallest). Sternum longer than wide, posteriorly pointed. Abdomen 1.61 long, 1.15 wide, with dorsal scutum in anterior half, extending slightly longitudinally past midpoint. Legs measurements: I 7.86 (2.10, 0.72, 2.47, 1.77, 0.80); II 6.44 (1.83, 0.64, 1.95, 1.50, 0.52); III 5.57 (1.55, 0.60, 1.30, 1.35, 0.77); IV 9.02 (2.40, 0.75, 2.25, 2.55, 1.07). Legs spination: femora I d3, pv1111, II d2, pv111, III d1, IV d1; tibiae I v22222222, II v2222222; metatarsi I v2222, II v2222.

Colouration ( Figs 4A, B View FIGURE 4 ). Carapace yellow-brown, with radial, irregular dark brown mottled markings. Chelicerae yellow-brown. Endites, labium and sternum yellow. Legs yellow. Abdomen gray, with pair of small oval and larger triangular grey spots located on postero-medial dorsal scutum and three light chevrons on posterior part, and oval yellowish stripes in front of anal tubercle; venter grey, with dark grey pattern along midline.

Palp ( Figs 4 View FIGURE 4 C−F, 6A−C, 7). Femoral apophysis (FA) well-developed, nearly as long as ½ of femur. Retrolateral tibial apophysis (RTA) stout, as long as tibia, thumb-like in retrolateral view, cone-shaped in dorsal view. Sperm duct (SD) nearly V-shaped in ventral view, extended from base of retrolateral tegular apophysis to embolic base, not reaching middle part of tegulum. Retrolateral tegular apophysis (rTA) strongly sclerotized, triangular, anterolaterally located. Distal tegular apophysis (dTA) broadly oval, membranous, antero-medially located. Embolus (E) spine-like, slightly longer than distal tegular apophysis, directed antero-retrolaterally.

Female paratype. Habitus as in Figs 5A, B View FIGURE 5 . As in male, except as noted. Total length 4.75, carapace 2.05 long, 1.75 wide. Eye diameters: AME 0.13, ALE 0.12, PME 0.10, PLE 0.12; interdistances: AME−AME 0.05, ALE−AME 0.02, PME−PME 0.15, ALE−ALE 0.31, PLE−PME 0.09, PLE−PLE 0.47, ALE−PLE 0.14, AME−PME 0.12, AME−PLE 0.22. MOA 0.30 long, front width 0.29, back width 0.32. Abdomen 2.30 long, 1.63 wide. Legs measurements: I 8.44 (2.14, 0.78, 2.64, 1.95, 0.93); II 6.85 (1.75, 0.70, 2.04, 1.47, 0.89); III 6.12 (1.62, 0.64, 1.45, 1.55, 0.86); IV 9.18 (2.45, 0.80, 2.35, 2.50, 1.08). Legs spination: femora I d2, pv111, II d1; Tibia I v222222222.

Colouration ( Fig. 5A, B View FIGURE 5 ). Lighter than male. Abdomen ventrally whitish grey, with yellow-brown triangular markings along posterior midline.

Epigyne ( Figs 5C, D View FIGURE 5 , 6D, E View FIGURE 6 ). Epigynal plate longer than wide, postero-medially with conspicuous spindleshaped median septum. Connecting tubes distinctly visible through integument. Copulatory openings (CO) located anteromedially, with coverings. Copulatory ducts (CD) tubular, longitudinal, anteriorly with a slight bend, posteriorly with pair of balloon-like transparent bursae. Glandular appendage not visible in dorsal view. Bursae (B), covering all of epigynal plate in dorsal view, base of bursae close to spermathecae. Spermathecae (SP) oval, contiguous. Fertilization ducts (FD) long, longer than spermathecae, extending postero-laterally.

Distribution. Known only from the type locality in Guangxi Zhuang Autonomous Region, China ( Fig. 21 View FIGURE 21 ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Phrurolithidae

Genus

Otacilia

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