Eupoa yunnanensis Peng & Kim, 1997

Logunov, Dmitri V. & Marusik, Yuri M., 2014, Taxonomic notes on the genus Eupoa Żabka, 1985 (Arachnida, Araneae, Salticidae), ZooKeys 410, pp. 63-93 : 83-85

Eupoa yunnanensis Peng & Kim, 1997 Figs 119-128

Eupoa yunnanensis Peng & Kim, 1997: 196, figs 3 A–C (D♂).

Eupoa yunnanensis : Song et al. 1999: 509, figs 292O, 325J (♂).

Material.

Laos: 2♂ (SMFM), Luang Prabang Prov., NE Luang Prabang, Nam Ou, Nong Khiao, Tham Pathok (20°33.082'N, 102°37.925'E '), 373 m a.s.l., outside cave, sieving leaf litter, 17-18.03.2007, P. Jäger & F. Steinmetz; 2♀ (SMFM), Luang Prabang Prov., SE Luang Prabang, Xieng Nguen Distr., Nam Khan, Ban Keng Koung (19°40.963'N, 102°18.442'E), 372 m a.s.l., along stream, sieving leaf litter, 22.03.2007, P. Jäger; 1♀ (SMFM), same locality, disturbed forest, dry stream bed, sieving and WINKLER-extraction, 21-23.02.2008, P. Jäger.

Diagnosis.

The male of Eupoa yunnanensis has the unique, widest and strongest patellar apophysis (Figs 124, 126) among all the Eupoa species known to us. The female has the unique conformation of its epigyne: viz., the singular atrium formed by the posterior chitinous margin and the anterior transverse pocket (Fig. 127) and the S-shaped spermathecae (Fig. 128).

Distribution.

China (Yunnan) ( Peng and Kim 1997) and northern Laos (Luang Prabang province) (present data).

Description.

MALE. Measurements. Carapace 0.96 long, 0.79 wide and 0.50 high at PLE. Ocular area 0.60 long, 0.83 wide anteriorly and 0.75 wide posteriorly. Diameter of AME 0.29. Clypeus height 0.06, chelicera length 0.21. Abdomen 0.83 long, 0.50 wide. Length of leg segments: I: 0.49 + 0.19 + 0.30 + 0.31 + 0.21; II: 0.43 + 0.20 + 0.23 + 0.27 + 0.21; III: 0.43 + 0.19 + 0.24 + 0.31 + 0.26; IV: 0.64 + 0.24 + 0.47 + 0.39 + 0.29. Leg spination. Leg I: Mt v 2-2-2ap. Leg II: no spines. Leg III: Tb pr and rt 0-1-0. Leg IV: Tb pr and rt 0-1-0; Mt d, pr and rt 1-1ap. Coloration (Figs 119-120, 122). Carapace brownish, with a wide longitudinal median yellow stripe, the area between PLEs also yellow; blackened around eyes. Clypeus naked, brownish yellow. Sternum, labium, maxillae and chelicerae yellow. Abdomen: dorsum and sides dark grey, with two longitudinal rows of yellow spots on dorsum; dorsum with shining scutum; venter yellow. Book-lung covers yellow. Spinnerets: anterior pair dark grey, posterior pair yellow. All legs yellow, but femora I and patellae I grey on their sides, tibiae I ventrally grey and patellae II-IV grey on their sides. Palps brownish. Palpal structure as in Figs 123-126: patellar apophysis thick, massive and split at its tip, reaching almost a half of the cymbial length; tibial apophysis short and wide, poorly-developed; tegulum well-developed; tegular apophysis wide and strong, looking like a median extension; median apophysis thick and visibly sclerotized, situated in the central part of tegulum; compound terminal apophysis short, situated at the basis of embolus; embolus fingerlike, with a short hook-shaped process on its tip.

FEMALE. Measurements. Carapace 1.13 long, 0.86 wide and 0.60 high at PLE. Ocular area 0.59 long, 0.89 wide anteriorly and 0.76 wide posteriorly. Diameter of AME 0.29. Clypeus height 0.06, chelicera length 0.20. Abdomen 1.10 long, 0.85 wide. Length of leg segments: I: 0.65 + 0.28 + 0.48 + 0.40 + 0.25; II: 0.53 + 0.23 + 0.35 + 0.35 + 0.23; III: 0.51 + 0.23 + 0.38 + 0.40 + 0.25; IV: 0.90 + 0.33 + 0.73 + 0.50 + 0.30. Leg spination. Leg I: Tb v 2-2-2ap; Mt v 2-2-2ap. Leg II: Tb pr and rt 0-1-0, v 1-2; Mt v 2-2-2ap. Leg III: Tb pr and rt 0-1-0; Mt pr and rt 1-0. Leg IV: Tb pr and rt 0-1-0; Mt pr 1-0-2ap, rt 1-0-1ap. Coloration (Fig. 121). Carapace yellow, with brownish margins and brownish eye field; blackened around eyes. Clypeus naked and yellow. Sternum, labium, maxillae and chelicerae yellow. Abdomen: dorsum yellow, with two dark brown pattern consisting of Λ-shaped figure and two round merging spots at its rear; venter yellow. Book-lung and spinnerets yellow. All legs and palps yellow. Epigyne and vulva as in Figs 127-128: central atrium present, it is formed by the posterior chitinous margin and the anterior transverse pocket; relatively short, transparent insemination ducts make a C-shaped loop; there are also visible large transparent sacs that seem to be disconnected from the insemination ducts (in the studied vulva only one sac is left); sclerotized receptacles bean-shaped.