Orcevia nietzschei Yu, Maddison & Zhang 2023, sp. nov.
Creators: name: Yu, Kun
name: Maddison, Wayne P.
name: Zhang, Junxia
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Salticidae
Orcevia
Orcevia nietzschei

description: Orcevia nietzschei Yu, Maddison & Zhang, sp. nov. (尼Kĸ尔¤)
Figs 2, 173–188
Type material. Holotype: ♂ (UBCZ; KYU-SAL517; SWK#12-3988), MALAYSIA: Sarawak, Lambir Hills Nat. Pk., Pantu Trail, 4.2025– 4.2027°N, 114.0402– 114.0405°E, 140 m elev., 31 March 2012, leg. W.P. Maddison & E.K. Piascik, WPM#12-110. Paratypes: 1♀ (UBCZ; SWK#12-3995; KYU-SAL509), same data as holotype; 1♀ (UBCZ; KYU-SAL508), same data as holotype; 1♂ (UBCZ; KYU-SAL500), MALAYSIA: Sarawak, Lambir Hills Nat. Pk., Lepoh-Ridan Trail, 4.2022– 4.2028°N, 114.0279– 114.0283°E, 200 m elev., 2 April 2012, leg. W.P. Maddison & E.K. Piascik, WPM#12-123; 1♀ (UBCZ; KYU-SAL505), MALAYSIA: Sarawak, Lambir Hills Nat. Pk., Pantu Trail, 4.2021– 4.2025°N, 114.0405– 114.0411°E, 140 m elev., 31 March 2012, leg. W.P. Maddison & E.K. Piascik, WPM#12-109.
Etymology. The specific epithet is in honor of the German philosopher Friedrich W. Nietzsche, whose works have exerted a profound influence on contemporary philosophy and have given tremendous inspiration to the first author.
Diagnosis. Males can be distinguished from the closely related O. bokoblin sp. nov. by the tip of RTA that is not revolute (Figs 180, 186; vs. obviously revolute in O. bokoblin sp. nov.), and the ventral femoral bump of male palp that is absent (Fig. 182). Females can be distinguished by the rougher surface of spermathecae, and the accessory glands invisible in dorsal view of vulva (Fig. 184).
Description. Male. Habitus as shown in Fig. 177. Measurements of holotype: carapace length 1.19; abdomen length 0.96; measurements of eyes: AME 0.27, ALE 0.19, PME 0.05, PLE 0.17; measurements of legs: I 2.24 (0.71, 0.42, 0.51, 0.34, 0.26), II 1.66 (0.51, 0.31, 0.32, 0.29, 0.23), III 1.80 (0.59, 0.30, 0.33, 0.35, 0.23), IV 2.04 (0.62, 0.27, 0.43, 0.45, 0.27); leg formula 1432. Carapace dark, cephalon and dorsal abdomen covered by relatively dense yellow setae; legs without melanic area and obvious yellow setae except on leg I.
Palp (Figs 179–182): embolus small and screw-like, embolic disc low, around base of embolus; lobe-like protrusion of tegulum relatively wide, with small tip well defined from other part; tegular lobe small, with small prolateral and retrolateral constrictions; RTA bent medially, tip rather broad, lamina-like; ventral femoral bump absent (Fig. 182).
Female. Habitus as shown in Fig. 178. Measurements of paratype: carapace length 1.10; abdomen length 1.10; measurements of eyes: AME 0.25, ALE 0.17, PME 0.05, PLE 0.15; measurements of legs: I 1.72 (0.52, 0.33, 0.35, 0.28, 0.24), II 1.57 (0.50, 0.30, 0.29, 0.26, 0.22), III 1.75 (0.55, 0.24, 0.34, 0.39, 0.23), IV 2.00 (0.60, 0.26, 0.45, 0.41, 0.28); leg formula 4312. Body dark, yellow setae on dorsal body sparse, legs lighter-colored.
Epigynum (Fig. 183): atria close to each other, far from genital furrow. Vulva (Figs 184): accessory glands invisible in dorsal view; spermathecae wrinkled, fertilization ducts long and curved, attached on mound of spermathecae.
Distribution. Malaysia (Sarawak).
description: Published as part of Yu, Kun, Maddison, Wayne P. & Zhang, Junxia, 2023, Taxonomic revision of Orcevia Thorell, 1890, with description of fifteen new species (Araneae, Salticidae, Euophryini), pp. 1-79 in Zootaxa 5384 (1) on pages 12-13, DOI: 10.11646/zootaxa.5384.1.1, http://zenodo.org/record/10376440