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

Jäger, Peter & Dankittipakul, Pakawin, 2010, Clubionidae from Laos and Thailand (Arachnida: Araneae), Zootaxa 2730, pp. 23-43 : 29-30

Clubiona lala spec. nov.

Figs 22-25, 28-30, 71

Type material: Holotype: Female, LAOS: Luang Nam Tha Province: 6 air km N of Luang Nam Tha , 589 m altitude, N 21°03 ’32.10”, E 101°24 ’3.0”, vegetation close to stream, water-duct under street, by day, by hand, 7 March 2008, P. Jäger leg. ( SMF, L41) .

Etymology. The species name is an abbreviation and derived from the Lao term "laai làak”, meaning “diverse”, referring to the diversity of the japonica-group in Southeast Asia; term in apposition.

Diagnosis. Small sized Clubioninae with a body length of 7.0 mm in females and strong opisthosomal and leg pattern (Figs 28-29), belonging to the japonica species-group . Females can be distinguished from those of C. campylacantha Dankittipakul, 2008 , C. octoginta Dankittipakul, 2008 , and C. suthepica Dankittipakul, 2008 by 1) having its epigynal atrium more rectangular (Fig. 22), 2) entire internal duct system being situated behind atrium (Fig. 23), 3) head of spermathecae of internal duct system laterad (Fig. 23).

Description. Female (holotype). PL 2.8, PW 1.9, AW 1.3, OL 4.2, OW 2.0. Eye diametres (Fig. 25): AME 0.14, ALE 0.16, PME 0.15, PLE 0.16. Eye interdistances: AME-AME 0.11, AME-ALE 0.07, PME-PME 0.29, PME-PLE 0.18, AME-PME 0.14, ALE-PLE 0.08, clypeus AME 0.07, clypeus ALE 0.06. Leg and pedipalp measurements: pedipalp 2.51 (0.86, 0.38, 0.51, -, 0.76); leg I 6.8 (1.9, 1.0, 1.8, 1.2, 0.9); leg II 7.7 (2.1, 1.05, 2.1, 1.5, 0.95); leg III 5.95 (1.7, 0.7, 1.3, 1.55, 0.7); leg IV 8.4 (2.3, 1.0, 2.0, 2.4, 0.7). Leg formula. 4213. Spination: Pedipalp: femur 030, patella 020, tibia 2101, tarsus 1014; Femur I-II p001, d111, III p011, d111, r011, IV p001, d111, r001; Patella III-IV r010; Tibia I-II v220, III p011, r011, v120, IV p011, r011, v110; Metatarsus II v100, III p111, d010, r111, v204, IV p111, d010, r111, v114.

Clypeus with sclerotised margin (Fig. 30). Chelicerae with only weakly developed frontal bulge (Fig. 30), cheliceral furrow with 3 anterior and 2 posterior teeth (Fig. 24). Tarsi and metatarsi I-II with sparse scopulae, III-IV with scopulae almost absent. Tibiae I-II with two indistinct ventral bands of scopula hairs. Spinnerets and anal tubercle elongated.

Copulatory organ as in diagnosis. Epigyne with two long slit sense organs lateral of atrium. Posterior margin of atrium only very slightly rebordered. Atrium separated from epigastric furrow by more than one length of atrium. Membranous bursae with small projections on surface. Spermathecae compact, spermathecal bases short, not extending laterally beyond duct system (Figs 22-23).

Colour in ethanol (Figs 28-30). Yellowish to reddish brown with distinct dark colour pattern. Dorsal prosoma with marginal bands and marbled pattern in head region and on frontal chelicerae, the latter reddish brown. Sternum with margin darker. Legs with distinct dark patches. Opisthosoma grey with distinct dark pattern. Dorsal opisthosoma with patches and stripes, in anterior half with band above heart, in posterior half with chevrons, the latter discontinuous. Ventral opisthosoma with broad median band mottled with black. Lateral spinnerets and anal tubercle dark.

Male: unknown.

Distribution. Known only from the type locality (Fig. 71: 1).