Clubiona maipai, Jäger, Peter & Dankittipakul, Pakawin, 2010

Jäger, Peter & Dankittipakul, Pakawin, 2010, Clubionidae from Laos and Thailand (Arachnida: Araneae), Zootaxa 2730, pp. 23-43 : 33-35

Clubiona maipai spec. nov.

Figs 37 -45, 52-56, 71

Type material: Holotype: male, THAILAND: Mae Hong Son Province: close to Ban Nam Rin , logged bamboo, by hand, 13 September 2003, D. Kovac leg. ( SMF) .

Paratypes: 8 males, 8 females, same locality as holotype, September 2003 ( SMF) , 1 male, 1 female, dito ( MHNG) .

Additional material examined for comparison. 1 male, 1 female paratype of Clubiona damirkovaci Deeleman-Reinhold, 2001 , MALAYSIA: Malay peninsula, Gombak Research Station N of Kuala Lumpur, from bamboo internodes, 1 July 1991, Damir Kovac leg. ( SMF60487 ).

Etymology. The species name is derived from the Thai and Lao word “mâipai”, meaning “bamboo”, referring to the habitat where the type series was collected by the bamboo researcher Damir Kovac; term in apposition.

Diagnosis. Small sized Clubioninae with body length of males 4.9-6.1 mm (Figs 52-53) and of females 5.5- 7.6 mm (Figs 54-55), belonging to the hystrix species-group. Closely related to Clubiona damirkovaci Deeleman-Reinhold, 2001 and C. kuu spec. nov. Males can be distinguished from both species by 1) the narrow and short base of RTA in retrolateral view (Fig. 38; narrow and long in C. damirkovaci , wide and short in C. kuu spec. nov.), 2) the small but distinct distal tegular hump (Fig. 37; indistinct in C. damirkovaci , developed more prominent in C. kuu spec. nov.), 3) number and arrangement of cheliceral teeth, namely 6 (5-7) anterior and 4 (3-5) posterior teeth in a straight row (Fig. 41; 5 anterior and 4 posterior teeth in a straight row in C. damirkovaci , 5 anterior and 3 posterior teeth with the two anterior and the distal posterior separated in C. kuu spec. nov.). Females can be distinguished from those of C. damirkovaci by the distinctly longer intromittent ducts (Figs 42-45), and from C. papuana Chrysanthus, 1967 by the presence of glandular appendages at ventral anterior spermathecae (Fig. 42; absent in C. papuana, Chrysanthus, 1967 : figs 28-29) and by the fertilisation duct arising from anterior spermathecae (Fig. 43; arising from posterior spermathecae in C. papuana ).

Description. Male (holotype). PL 2.6, PW 1.8, AW 1.1, OL 3.1, OW 1.3. Eye diametres (Fig. 40): AME 0.18, ALE 0.16, PME 0.16, PLE 0.18. Eye interdistances: AME-AME 0.07, AME-ALE 0.02, PME-PME 0.25, PME-PLE 0.13, AME-PME 0.09, ALE-PLE 0.04, clypeus AME 0.02, clypeus ALE 0.03. Leg and pedipalp measurements: pedipalp 2.14 (0.80, 0.33, 0.30, -, 0.71); leg I 5.85 (1.7, 0.9, 1.6, 1.15, 0.5); leg II 7.2 (2.1, 1.0, 2.15, 1.4, 0.55); leg III 5.55 (1.7, 9.65, 1.3, 1.4, 0.5); leg IV 8.1 (2.3, 0.85, 1.9, 2.35, 0.7). Leg formula. 4213. Spination: Pedipalp: femur 130, patella 020, tibia 2102, tarsus 1102; Femur I p011, d111, r011, II p011, d111, r001, III p011, d111, r011, IV p001, d111, r001; Patella IV r010; Tibia I-II v220, III p011, r011, v210, IV p102, r102, v203; Metatarsus I-II v200, III p011, r011, v120, IV p112, r112, v113.

Chelicerae with frontal bulge, cheliceral furrow with 6 anterior and 4 tiny posterior teeth (Fig. 41). Metatarsi and tibiae I-II with two scopulae bands ventrally. Tarsi I-II with reduced claw tufts. Spinnerets and anal tubercle elongated.

Palp as in diagnosis. Tibia diverging distally in retrolateral view. Cymbium distinctly longer than tibia, with less sclerotised ridge retrolatero-distally (probably functional conductor). Small part of subtegulum visible prolatero-proximally. Distal RTA thin and spine-like. Embolus arising prolatero-distally from tegulum, its basal part wide, narrowing to filiform tip. Sperm duct running an elongated loop (Figs 37-39).

Colour in ethanol (Figs 52-53). Pale yellowish brown without colour pattern, dorsal prosoma and chelicerae a bit darker, sternum marginally darker.

Female (paratype, SMF). PL 2.8, PW 2.1, AW 1.35, OL 3.5, OW 1.5. Eye diametres: AME 0.17, ALE 0.18, PME 0.17, PLE 0.15. Eye interdistances: AME-AME 0.10, AME-ALE 0.05, PME-PME 0.28, PME-PLE 0.15, AME-PME 0.11, ALE-PLE 0.07, clypeus AME 0.03, clypeus ALE 0.04. Leg and pedipalp measurements: pedipalp 2.31 (0.77, 0.37, 0.52, -, 0.65); leg I 6.0 (1.8, 0.9, 1.6, 1.15, 0.55); leg II 7.25 (2.1, 1.05, 2.1, 1.4, 0.6); leg III 5.8 (1.8, 0.7, 1.3, 1.4, 0.6); leg IV 8.55 (2.5, 0.7, 2.1, 2.45, 0.8). Leg formula. 4213. Spination: Pedipalp: femur 130, patella 010, tibia 2212, tarsus 1013; Femur I p011, d011, II p011, d111, III p011, d111, r001, IV p001, d111, r001; Patella 0; Tibia I-II v220, III p011, r011, v110, IV p011, r011, v110; Metatarsus I-II v200, III p111, r101, v203, IV p111, r111, v113.

Spinnerets and anal tubercle elongated.

Copulatory organ as in diagnosis. Copulatory openings situated at two small transversal ridges in posterior epigyne. Posterior margin of epigyne medially only slightly bulged. One slit sense organ anterior of epigyne (Fig. 42). Intromittent ducts running from openings parallel and slightly converging, turning between anterior spermathecae at an angle of 180° to the ventral side, coiling and being discharged into posterior spermathecae. Anterior spermathecae slightly smaller than posterior ones, antero-mediad. Fertilisation ducts antero-laterad (Fig. 43). U- shaped parts of intromittent ducts in ventral view varying in length (Figs 42, 45).

Colour in ethanol (Figs 54-55). As in male.

Distribution. Known only from the type locality (Fig. 71: 10).